import std.stdio, std.string, std.conv, std.array, std.algorithm;
import std.uni, std.range, std.math, std.container, std.datetime;
import core.bitop, std.typetuple, std.typecons;

immutable long MOD = 1_000_000_007;
alias tie = TypeTuple;

void main(){
    int a, b;
    char op;

    while(true){
        readVars(a, op, b);

        switch(op){
            case '+':
                writeln(a + b);
                break;

            case '-':
                writeln(a - b);
                break;

            case '*':
                writeln(a * b);
                break;

            case '/':
                writeln(a / b);
                break;

            default:
                return;
        }
    }
}


void readVars(T...)(auto ref T args){
    auto line = readln.split;
    foreach(ref arg ; args){
        arg = line.front.to!(typeof(arg));
        line.popFront;
    }
    if(!line.empty){
        throw new Exception("args num < input num");
    }
}