#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a1,a2; char a; cin>>a1>>a>>a2; switch(a){ case '+': cout<<a1+a2<<endl; break; case '*': cout<<a1*a2<<endl; break; case '/': cout<<a1/a2<<endl; break; case '-': cout<<a1-a2<<endl; break; } return 0; }