#include <iostream>

inline
void parse(int n, int h=0, char c=0, int k=0)
{
    while
    (
        n-- &&
        std::cin >> h >> c >> k &&
        (
            std::cout <<
            (c == '+' ? h + k :
             (c == '-' ? h - k :
                                 h * k
             )
            ) << std::endl
        )
    ) {}
}

int main(int argc, char**)
{
    while(std::cin>>argc, parse(argc),0) {}
}