int printf(char* format, ...);
int getchar();


void read(int* a) {
    a[0] = 0;
    while (1) {
        int c = getchar();
        if (c == '\n' || c == -1) {
            break;
        }
        if (c >= '0' && c <= '9') {
            a[++a[0]] = c - '0';
        }
    }
    for (int j = 1; j <= a[0] / 2; j++) {
        int temp = a[j];
        a[j] = a[a[0] - j + 1];
        a[a[0] - j + 1] = temp;
    }
}

void write(int* a) {
    int n = a[0];
    for (int i = n; i > 0; --i) {
        printf("%d", a[i]);
    }
    printf("\n");
}

void add(int* a, int* b) {
    int n = a[0] > b[0] ? a[0] : b[0];
    int carry = 0;
    for (int i = 1; i <= n; i++) {
        int sum = a[i] + b[i] + carry;
        a[i] = sum % 10;
        carry = sum / 10;
    }
    if (carry) {
        a[n + 1] = carry;
        a[0] = n + 1;
    } else {
        a[0] = n;
    }
}

int main() {
    int a[100];
    int b[100];
    read(a);
    read(b);
    add(a, b);
    write(a);
}