#include <stdio.h>
#include <stdint.h>

uint64_t f_u_arrmul4(uint64_t a, uint64_t b){
  uint8_t f_u_arrmul4_out = 0;
  uint8_t f_u_arrmul4_and0_0 = 0;
  uint8_t f_u_arrmul4_and1_0 = 0;
  uint8_t f_u_arrmul4_and2_0 = 0;
  uint8_t f_u_arrmul4_and3_0 = 0;
  uint8_t f_u_arrmul4_and0_1 = 0;
  uint8_t f_u_arrmul4_ha0_1_xor0 = 0;
  uint8_t f_u_arrmul4_ha0_1_and0 = 0;
  uint8_t f_u_arrmul4_and1_1 = 0;
  uint8_t f_u_arrmul4_fa1_1_xor0 = 0;
  uint8_t f_u_arrmul4_fa1_1_and0 = 0;
  uint8_t f_u_arrmul4_fa1_1_xor1 = 0;
  uint8_t f_u_arrmul4_fa1_1_and1 = 0;
  uint8_t f_u_arrmul4_fa1_1_or0 = 0;
  uint8_t f_u_arrmul4_and2_1 = 0;
  uint8_t f_u_arrmul4_fa2_1_xor0 = 0;
  uint8_t f_u_arrmul4_fa2_1_and0 = 0;
  uint8_t f_u_arrmul4_fa2_1_xor1 = 0;
  uint8_t f_u_arrmul4_fa2_1_and1 = 0;
  uint8_t f_u_arrmul4_fa2_1_or0 = 0;
  uint8_t f_u_arrmul4_and3_1 = 0;
  uint8_t f_u_arrmul4_ha3_1_xor0 = 0;
  uint8_t f_u_arrmul4_ha3_1_and0 = 0;
  uint8_t f_u_arrmul4_and0_2 = 0;
  uint8_t f_u_arrmul4_ha0_2_xor0 = 0;
  uint8_t f_u_arrmul4_ha0_2_and0 = 0;
  uint8_t f_u_arrmul4_and1_2 = 0;
  uint8_t f_u_arrmul4_fa1_2_xor0 = 0;
  uint8_t f_u_arrmul4_fa1_2_and0 = 0;
  uint8_t f_u_arrmul4_fa1_2_xor1 = 0;
  uint8_t f_u_arrmul4_fa1_2_and1 = 0;
  uint8_t f_u_arrmul4_fa1_2_or0 = 0;
  uint8_t f_u_arrmul4_and2_2 = 0;
  uint8_t f_u_arrmul4_fa2_2_xor0 = 0;
  uint8_t f_u_arrmul4_fa2_2_and0 = 0;
  uint8_t f_u_arrmul4_fa2_2_xor1 = 0;
  uint8_t f_u_arrmul4_fa2_2_and1 = 0;
  uint8_t f_u_arrmul4_fa2_2_or0 = 0;
  uint8_t f_u_arrmul4_and3_2 = 0;
  uint8_t f_u_arrmul4_fa3_2_xor0 = 0;
  uint8_t f_u_arrmul4_fa3_2_and0 = 0;
  uint8_t f_u_arrmul4_fa3_2_xor1 = 0;
  uint8_t f_u_arrmul4_fa3_2_and1 = 0;
  uint8_t f_u_arrmul4_fa3_2_or0 = 0;
  uint8_t f_u_arrmul4_and0_3 = 0;
  uint8_t f_u_arrmul4_ha0_3_xor0 = 0;
  uint8_t f_u_arrmul4_ha0_3_and0 = 0;
  uint8_t f_u_arrmul4_and1_3 = 0;
  uint8_t f_u_arrmul4_fa1_3_xor0 = 0;
  uint8_t f_u_arrmul4_fa1_3_and0 = 0;
  uint8_t f_u_arrmul4_fa1_3_xor1 = 0;
  uint8_t f_u_arrmul4_fa1_3_and1 = 0;
  uint8_t f_u_arrmul4_fa1_3_or0 = 0;
  uint8_t f_u_arrmul4_and2_3 = 0;
  uint8_t f_u_arrmul4_fa2_3_xor0 = 0;
  uint8_t f_u_arrmul4_fa2_3_and0 = 0;
  uint8_t f_u_arrmul4_fa2_3_xor1 = 0;
  uint8_t f_u_arrmul4_fa2_3_and1 = 0;
  uint8_t f_u_arrmul4_fa2_3_or0 = 0;
  uint8_t f_u_arrmul4_and3_3 = 0;
  uint8_t f_u_arrmul4_fa3_3_xor0 = 0;
  uint8_t f_u_arrmul4_fa3_3_and0 = 0;
  uint8_t f_u_arrmul4_fa3_3_xor1 = 0;
  uint8_t f_u_arrmul4_fa3_3_and1 = 0;
  uint8_t f_u_arrmul4_fa3_3_or0 = 0;

  f_u_arrmul4_and0_0 = ((a >> 0) & 0x01) & ((b >> 0) & 0x01);
  f_u_arrmul4_and1_0 = ((a >> 1) & 0x01) & ((b >> 0) & 0x01);
  f_u_arrmul4_and2_0 = ((a >> 2) & 0x01) & ((b >> 0) & 0x01);
  f_u_arrmul4_and3_0 = ((a >> 3) & 0x01) & ((b >> 0) & 0x01);
  f_u_arrmul4_and0_1 = ((a >> 0) & 0x01) & ((b >> 1) & 0x01);
  f_u_arrmul4_ha0_1_xor0 = ((f_u_arrmul4_and0_1 >> 0) & 0x01) ^ ((f_u_arrmul4_and1_0 >> 0) & 0x01);
  f_u_arrmul4_ha0_1_and0 = ((f_u_arrmul4_and0_1 >> 0) & 0x01) & ((f_u_arrmul4_and1_0 >> 0) & 0x01);
  f_u_arrmul4_and1_1 = ((a >> 1) & 0x01) & ((b >> 1) & 0x01);
  f_u_arrmul4_fa1_1_xor0 = ((f_u_arrmul4_and1_1 >> 0) & 0x01) ^ ((f_u_arrmul4_and2_0 >> 0) & 0x01);
  f_u_arrmul4_fa1_1_and0 = ((f_u_arrmul4_and1_1 >> 0) & 0x01) & ((f_u_arrmul4_and2_0 >> 0) & 0x01);
  f_u_arrmul4_fa1_1_xor1 = ((f_u_arrmul4_fa1_1_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_ha0_1_and0 >> 0) & 0x01);
  f_u_arrmul4_fa1_1_and1 = ((f_u_arrmul4_fa1_1_xor0 >> 0) & 0x01) & ((f_u_arrmul4_ha0_1_and0 >> 0) & 0x01);
  f_u_arrmul4_fa1_1_or0 = ((f_u_arrmul4_fa1_1_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa1_1_and1 >> 0) & 0x01);
  f_u_arrmul4_and2_1 = ((a >> 2) & 0x01) & ((b >> 1) & 0x01);
  f_u_arrmul4_fa2_1_xor0 = ((f_u_arrmul4_and2_1 >> 0) & 0x01) ^ ((f_u_arrmul4_and3_0 >> 0) & 0x01);
  f_u_arrmul4_fa2_1_and0 = ((f_u_arrmul4_and2_1 >> 0) & 0x01) & ((f_u_arrmul4_and3_0 >> 0) & 0x01);
  f_u_arrmul4_fa2_1_xor1 = ((f_u_arrmul4_fa2_1_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_fa1_1_or0 >> 0) & 0x01);
  f_u_arrmul4_fa2_1_and1 = ((f_u_arrmul4_fa2_1_xor0 >> 0) & 0x01) & ((f_u_arrmul4_fa1_1_or0 >> 0) & 0x01);
  f_u_arrmul4_fa2_1_or0 = ((f_u_arrmul4_fa2_1_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa2_1_and1 >> 0) & 0x01);
  f_u_arrmul4_and3_1 = ((a >> 3) & 0x01) & ((b >> 1) & 0x01);
  f_u_arrmul4_ha3_1_xor0 = ((f_u_arrmul4_and3_1 >> 0) & 0x01) ^ ((f_u_arrmul4_fa2_1_or0 >> 0) & 0x01);
  f_u_arrmul4_ha3_1_and0 = ((f_u_arrmul4_and3_1 >> 0) & 0x01) & ((f_u_arrmul4_fa2_1_or0 >> 0) & 0x01);
  f_u_arrmul4_and0_2 = ((a >> 0) & 0x01) & ((b >> 2) & 0x01);
  f_u_arrmul4_ha0_2_xor0 = ((f_u_arrmul4_and0_2 >> 0) & 0x01) ^ ((f_u_arrmul4_fa1_1_xor1 >> 0) & 0x01);
  f_u_arrmul4_ha0_2_and0 = ((f_u_arrmul4_and0_2 >> 0) & 0x01) & ((f_u_arrmul4_fa1_1_xor1 >> 0) & 0x01);
  f_u_arrmul4_and1_2 = ((a >> 1) & 0x01) & ((b >> 2) & 0x01);
  f_u_arrmul4_fa1_2_xor0 = ((f_u_arrmul4_and1_2 >> 0) & 0x01) ^ ((f_u_arrmul4_fa2_1_xor1 >> 0) & 0x01);
  f_u_arrmul4_fa1_2_and0 = ((f_u_arrmul4_and1_2 >> 0) & 0x01) & ((f_u_arrmul4_fa2_1_xor1 >> 0) & 0x01);
  f_u_arrmul4_fa1_2_xor1 = ((f_u_arrmul4_fa1_2_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_ha0_2_and0 >> 0) & 0x01);
  f_u_arrmul4_fa1_2_and1 = ((f_u_arrmul4_fa1_2_xor0 >> 0) & 0x01) & ((f_u_arrmul4_ha0_2_and0 >> 0) & 0x01);
  f_u_arrmul4_fa1_2_or0 = ((f_u_arrmul4_fa1_2_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa1_2_and1 >> 0) & 0x01);
  f_u_arrmul4_and2_2 = ((a >> 2) & 0x01) & ((b >> 2) & 0x01);
  f_u_arrmul4_fa2_2_xor0 = ((f_u_arrmul4_and2_2 >> 0) & 0x01) ^ ((f_u_arrmul4_ha3_1_xor0 >> 0) & 0x01);
  f_u_arrmul4_fa2_2_and0 = ((f_u_arrmul4_and2_2 >> 0) & 0x01) & ((f_u_arrmul4_ha3_1_xor0 >> 0) & 0x01);
  f_u_arrmul4_fa2_2_xor1 = ((f_u_arrmul4_fa2_2_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_fa1_2_or0 >> 0) & 0x01);
  f_u_arrmul4_fa2_2_and1 = ((f_u_arrmul4_fa2_2_xor0 >> 0) & 0x01) & ((f_u_arrmul4_fa1_2_or0 >> 0) & 0x01);
  f_u_arrmul4_fa2_2_or0 = ((f_u_arrmul4_fa2_2_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa2_2_and1 >> 0) & 0x01);
  f_u_arrmul4_and3_2 = ((a >> 3) & 0x01) & ((b >> 2) & 0x01);
  f_u_arrmul4_fa3_2_xor0 = ((f_u_arrmul4_and3_2 >> 0) & 0x01) ^ ((f_u_arrmul4_ha3_1_and0 >> 0) & 0x01);
  f_u_arrmul4_fa3_2_and0 = ((f_u_arrmul4_and3_2 >> 0) & 0x01) & ((f_u_arrmul4_ha3_1_and0 >> 0) & 0x01);
  f_u_arrmul4_fa3_2_xor1 = ((f_u_arrmul4_fa3_2_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_fa2_2_or0 >> 0) & 0x01);
  f_u_arrmul4_fa3_2_and1 = ((f_u_arrmul4_fa3_2_xor0 >> 0) & 0x01) & ((f_u_arrmul4_fa2_2_or0 >> 0) & 0x01);
  f_u_arrmul4_fa3_2_or0 = ((f_u_arrmul4_fa3_2_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa3_2_and1 >> 0) & 0x01);
  f_u_arrmul4_and0_3 = ((a >> 0) & 0x01) & ((b >> 3) & 0x01);
  f_u_arrmul4_ha0_3_xor0 = ((f_u_arrmul4_and0_3 >> 0) & 0x01) ^ ((f_u_arrmul4_fa1_2_xor1 >> 0) & 0x01);
  f_u_arrmul4_ha0_3_and0 = ((f_u_arrmul4_and0_3 >> 0) & 0x01) & ((f_u_arrmul4_fa1_2_xor1 >> 0) & 0x01);
  f_u_arrmul4_and1_3 = ((a >> 1) & 0x01) & ((b >> 3) & 0x01);
  f_u_arrmul4_fa1_3_xor0 = ((f_u_arrmul4_and1_3 >> 0) & 0x01) ^ ((f_u_arrmul4_fa2_2_xor1 >> 0) & 0x01);
  f_u_arrmul4_fa1_3_and0 = ((f_u_arrmul4_and1_3 >> 0) & 0x01) & ((f_u_arrmul4_fa2_2_xor1 >> 0) & 0x01);
  f_u_arrmul4_fa1_3_xor1 = ((f_u_arrmul4_fa1_3_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_ha0_3_and0 >> 0) & 0x01);
  f_u_arrmul4_fa1_3_and1 = ((f_u_arrmul4_fa1_3_xor0 >> 0) & 0x01) & ((f_u_arrmul4_ha0_3_and0 >> 0) & 0x01);
  f_u_arrmul4_fa1_3_or0 = ((f_u_arrmul4_fa1_3_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa1_3_and1 >> 0) & 0x01);
  f_u_arrmul4_and2_3 = ((a >> 2) & 0x01) & ((b >> 3) & 0x01);
  f_u_arrmul4_fa2_3_xor0 = ((f_u_arrmul4_and2_3 >> 0) & 0x01) ^ ((f_u_arrmul4_fa3_2_xor1 >> 0) & 0x01);
  f_u_arrmul4_fa2_3_and0 = ((f_u_arrmul4_and2_3 >> 0) & 0x01) & ((f_u_arrmul4_fa3_2_xor1 >> 0) & 0x01);
  f_u_arrmul4_fa2_3_xor1 = ((f_u_arrmul4_fa2_3_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_fa1_3_or0 >> 0) & 0x01);
  f_u_arrmul4_fa2_3_and1 = ((f_u_arrmul4_fa2_3_xor0 >> 0) & 0x01) & ((f_u_arrmul4_fa1_3_or0 >> 0) & 0x01);
  f_u_arrmul4_fa2_3_or0 = ((f_u_arrmul4_fa2_3_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa2_3_and1 >> 0) & 0x01);
  f_u_arrmul4_and3_3 = ((a >> 3) & 0x01) & ((b >> 3) & 0x01);
  f_u_arrmul4_fa3_3_xor0 = ((f_u_arrmul4_and3_3 >> 0) & 0x01) ^ ((f_u_arrmul4_fa3_2_or0 >> 0) & 0x01);
  f_u_arrmul4_fa3_3_and0 = ((f_u_arrmul4_and3_3 >> 0) & 0x01) & ((f_u_arrmul4_fa3_2_or0 >> 0) & 0x01);
  f_u_arrmul4_fa3_3_xor1 = ((f_u_arrmul4_fa3_3_xor0 >> 0) & 0x01) ^ ((f_u_arrmul4_fa2_3_or0 >> 0) & 0x01);
  f_u_arrmul4_fa3_3_and1 = ((f_u_arrmul4_fa3_3_xor0 >> 0) & 0x01) & ((f_u_arrmul4_fa2_3_or0 >> 0) & 0x01);
  f_u_arrmul4_fa3_3_or0 = ((f_u_arrmul4_fa3_3_and0 >> 0) & 0x01) | ((f_u_arrmul4_fa3_3_and1 >> 0) & 0x01);

  f_u_arrmul4_out |= ((f_u_arrmul4_and0_0 >> 0) & 0x01) << 0;
  f_u_arrmul4_out |= ((f_u_arrmul4_ha0_1_xor0 >> 0) & 0x01) << 1;
  f_u_arrmul4_out |= ((f_u_arrmul4_ha0_2_xor0 >> 0) & 0x01) << 2;
  f_u_arrmul4_out |= ((f_u_arrmul4_ha0_3_xor0 >> 0) & 0x01) << 3;
  f_u_arrmul4_out |= ((f_u_arrmul4_fa1_3_xor1 >> 0) & 0x01) << 4;
  f_u_arrmul4_out |= ((f_u_arrmul4_fa2_3_xor1 >> 0) & 0x01) << 5;
  f_u_arrmul4_out |= ((f_u_arrmul4_fa3_3_xor1 >> 0) & 0x01) << 6;
  f_u_arrmul4_out |= ((f_u_arrmul4_fa3_3_or0 >> 0) & 0x01) << 7;
  return f_u_arrmul4_out;
}