#include <iostream>
#include <string>

int main() {
    std::string expression;
    std::cin >> expression;

    int plusPos = expression.find('+');
    int equalPos = expression.find('=');

    std::string num1Str = expression.substr(0, plusPos);
    std::string num2Str = expression.substr(plusPos + 1, equalPos - plusPos - 1);

    int num1 = std::stoi(num1Str);
    int num2 = std::stoi(num2Str);

    int result = num1 + num2;
    std::cout << result << std::endl;

    return 0;
}
/**************************************************************
	Problem: 1130
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2076 kb
****************************************************************/