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