#include
using namespace std;
int a,b;
char str;
int main()
{
while(cin>>a>>str>>b)
{
//cin>>a>>str>>b;
switch(str)
{
case '+':
cout< break;
case '-':
cout<break;
case '*':
cout< break;
case '/':
{
if(b==0) cout<<"wrong!"<else cout< break;
}
default:
cout<<"重新输入:"<break;
}
}
return 0;
}
#include
using namespace std;
int a,b;
char str;
int main()
{
while(cin>>a>>str>>b)
{
if(str=='+')
{
cout< }else if(str=='-')
{
cout<}else if(str=='*')
{
cout< }else if(str=='/')
{
if(b==0) cout<<"wrong!"<else cout< }else cout<<"重新输入:"<
}
return 0;
}