#include <stdlib.h>
#include <stdio.h>
#include <time.h>
int main(void){
if(sign
== 0) printf("%d + %d",a
,b
); else if(sign
== 1) printf("%d - %d",a
,b
); else if(sign
== 2) printf("%d * %d",a
,b
); else if(sign
== 3) printf("%d / %d",a
,b
);
return 0;
}
I2luY2x1ZGUgPHN0ZGxpYi5oPgojaW5jbHVkZSAgPHN0ZGlvLmg+CiNpbmNsdWRlIDx0aW1lLmg+CmludCBtYWluKHZvaWQpewogICAgc3JhbmQodGltZShOVUxMKSk7CgogICAgaW50IGEgPSByYW5kKCklMTAxOwogICAgaW50IGIgPSByYW5kKCklMTAxOwogICAgaW50IHNpZ24gPSByYW5kKCkgJSA0IDsKICAgIGlmKHNpZ24gPT0gMCkgcHJpbnRmKCIlZCArICVkIixhLGIpOwogICAgZWxzZSBpZihzaWduID09IDEpIHByaW50ZigiJWQgLSAlZCIsYSxiKTsKICAgIGVsc2UgaWYoc2lnbiA9PSAyKSBwcmludGYoIiVkICogJWQiLGEsYik7CiAgICBlbHNlIGlmKHNpZ24gPT0gMykgcHJpbnRmKCIlZCAvICVkIixhLGIpOwoKICAgIHJldHVybiAwOwp9