#include <iostream>
using namespace std;
 
int tab[10];
 
int main() {
 
	char znak;
	int x, y;
 
	while(cin >> znak >> x >> y) {
		if(znak == 'z') {
			tab[x] = y;
		}
		else if(znak=='+') {
			cout << tab[x] + tab[y] << endl;
		}
		else if(znak=='-') {
			cout << tab[x] - tab[y] << endl;
		}
		else if(znak=='*') {
			cout << tab[x] * tab[y] << endl;
		}
		else if(znak=='/') {
			cout << tab[x] / tab[y] << endl;
		}
		else if(znak=='%') {
			cout << tab[x] % tab[y] << endl;
		}
	}
 
	return 0;
}

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eiAzIDYKeiAxIDg5CnogMiA2MAp6IDAgMTEKKyAwIDEKLSAxIDIKKiAyIDMKLyAzIDAKJSAzIDE=

z 3 6
z 1 89
z 2 60
z 0 11
+ 0 1
- 1 2
* 2 3
/ 3 0
% 3 1