#include <stdio.h> 

int deci(int);

int main(void){     
/* 変数の宣言 */
  int binary1,binary2;
  int decimal = 0;
  int base = 1;
 
  /* 10進数の入力 */
  scanf("%d", &binary1);
  scanf("%d", &binary2);
 
 int m,n;
  /* 変換した2進数の出力 */
  m = deci(binary1);
  n = deci(binary2);
 
  printf("%d",m+n);
	return 0; 
}


int deci(int binary){
  int decimal = 0;
  int base = 1;
	 /* 2進数を10進数に変換 */
  while(binary>0){
    decimal = decimal + ( binary % 10 ) * base;
    binary = binary / 10;
    base = base * 2;
  }
  return decimal;
}