#include<bits/stdc++.h> using namespace std; int main(){ int a,b; char c; cin>>a>>b>>c; if((c!='+')&&(c!='-')&&(c!='*')&&(c!='/')) cout<<"Invalid operator!\n"; if(c=='+') printf("%d",a+b); if(c=='-') printf("%d",a-b); if(c=='*') printf("%d",a*b); if(c=='/') printf("%d",a/b); if(b==0) cout<<"Divided by zero!\n"; return 0; }