#include <stdio.h>
int main(void) {
int a,b,c;
int d;
scanf("%d %d %d",&a
,&b
,&c
); d=a%b;
switch(c){
case 1:printf("%d+%d=%d",a
,b
,a
+b
); break;
case 2:printf("%d-%d=%d",a
,b
,a
-b
); break;
case 3:printf("%d×%d=%d",a
,b
,a
*b
); break;
case 4:switch(d){
case 0:printf("%d÷%d=%d",a
,b
,a
/b
); break;
default:printf("%d÷%d=%d余り%d",a
,b
,a
/b
,d
); }
}
return 0;
}
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