输入一个整数，将这个整数以字符串的形式逆序输出

#include<iostream> 
#include<string> 
#include<sstream> 
using namespace std; 
int main() 
{ 
    int input; 
    stringstream ss; 
    string res; 
    while (cin >> input) 
    { 
        while (input / 10 != 0) 
        { 
            ss << input % 10; input /= 10; 
        } 
        ss << input % 10; 
        ss >> res; 
        cout<<res; 
    } 
return 0; 
}