#include<stdio.h>
#include<string.h>
int main() {
    char a[105], b[105], sum[110];
    int i, j, carry=0, k=0;
    scanf("%s", a);
    scanf("%s", b);
    i = strlen(a) - 1;
    j = strlen(b) - 1;
    while(i >= 0 || j >= 0 || carry) {
        int bit1 = (i>=0) ? a[i--] - '0' : 0;
        int bit2 = (j>=0) ? b[i--] - '0' : 0;
        int tot = bit1 + bit2 + carry;
        sum[k++] = (total % 2) + '0';
        carry = total/2;
    }
    
    for (i=k-1; i>=0; i--) {
        printf("%c", sum[i]);
    }
    return 0;
}