import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner scan = new Scanner(System.in);
char ch = scan.next().charAt(0);
while(ch == '+' || ch == '-' || ch == '*' || ch == '/' || ch == '%' || ch == ';') {
int c = 0;
if(ch=='+') {
int a = scan.nextInt();
int b = scan.nextInt();
c=a+b;
System.out.println(c);
}
else if(ch=='-') {
int a = scan.nextInt();
int b = scan.nextInt();
c=a-b;
System.out.println(c);
}
else if(ch=='*') {
int a = scan.nextInt();
int b = scan.nextInt();
c=a*b;
System.out.println(c);
}
else if(ch=='%') {
int a = scan.nextInt();
int b = scan.nextInt();
if(b != 0)
c=a%b;
System.out.println(c);
}
else if(ch=='/') {
int a = scan.nextInt();
int b = scan.nextInt();
if(b != 0)
c=a/b;
System.out.println(c);
}
else
System.out.println("Invalid operation. Try again.");
ch = scan.next().charAt(0);
}
}
}