/*
#include <stdio.h>
int main()
{
int a;
scanf("%d", &a);
if(a%6==0)
{
printf("win");
}
else if(a>=50 && a<=70)
{
printf("win");
}
else
{
printf("lose");
}
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int a, year;
scanf("%d", &a);
year=2013-a;
if(year/100==19)
{
printf("%d %d",year%100, 1);
}
else
{
printf("%d %d", year%100, 3);
}
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int a, b, c, d;
scanf("%d %d %d", &a, &b, &c);
d = b-c;
if(d>a)
{
printf("advertise");
}
else if(d==a)
{
printf("does not matter");
}
else
{
printf("do not advertise");
}
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
float a, b, c, d, y, x;
scanf("%f %f %f %f", &a, &b, &c, &d);
y = a/b;
x = c/d;
if(y>x)
{
printf(">");
}
else if(y<x)
{
printf("<");
}
else
{
printf("=");
}
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
double a, b, c, d, e;
scanf("%lf %lf", &a, &b);
c = a-100;
d = (a-150)/2 + 50;
e = (a-100)*0.9;
if(a < 150)
{
if(c<=10)
{
printf("정상");
}
else if( c>20 )
{
printf("비만");
}
else
{
printf("과체중");
}
}
else if(a>=150 || a<160)
{
if(d<=10)
{
printf("정상");
}
else if(d>20)
{
printf("비만");
}
else
{
printf("과체중");
}
}
else
{
if(e<=10)
{
printf("정상");
}
else if(e>20)
{
printf("비만");
}
else
{
printf("과체중");
}
}
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
double a,b,c,d;
scanf("%lf %lf", &a, &b);
if(a<150)
{
c=(a-100);
}
else if(a>=160)
{
c = (a-100)*0.9;
}
else
{
c = (a-150)/2 + 50;
}
d=(b-c)*100/c;
if(d<=10)
{
printf("정상");
}
else if(d>20)
{
printf("비만");
}
else
{
printf("과체중");
}
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int a;
scanf("%d", &a);
switch(a/10)
{
case 10:
case 9:printf("A");break;
case 8:printf("B");break;
case 7:printf("C");break;
case 6:printf("D");break;
default:printf("F");break;
}
}
*/
/*
#include <stdio.h>
int main()
{
int a, b, c, d;
scanf("%d %d %d %d", &a, &b, &c, &d);
switch(a + b + c + d)
{
case 4:printf("윷");break;
case 3:printf("걸");break;
case 2:printf("개");break;
case 1:printf("도");break;
case 0:printf("모");break;
}
}
*/
#include <stdio.h>
int main()
{
int a, b;
char c;
scanf("%d%c%d", &a, &c, &b);
switch(a, b, c)
{
case '+':printf("%d", a+b);break;
case '-':printf("%d", a-b);break;
case '*':printf("%d", a*b);break;
case '/':printf("%0.2d", a/b);break;
}
}