程序代码：

#include <iostream> 
#include <cstdio> 
#include <string> 
#include <vector> 
#include <deque> 
#include <list> 
#include <map> 

 
using namespace std; 

 
int a[10]; 

 
int main() 
{ 

 string s; 

 cin >> s; 

 a[0] = s[0] - '0'; 

 a[1] = s[2] - '0'; 

 a[2] = s[3] - '0'; 

 a[3] = s[4] - '0'; 

 a[4] = s[6] - '0'; 

 a[5] = s[7] - '0'; 

 a[6] = s[8] - '0'; 

 a[7] = s[9] - '0'; 

 a[8] = s[10] - '0'; 

 a[9] = s[12] - '0'; 

 int sum = 0; 

 for (int i = 0, j = 1; i < 9; i++, j++) 

 { 

 sum += a[i] * j; 

 } 

 int code = sum % 11; 

 char c = code == 10 ? 'X' : '0' + code; 

 if (s[12] == c) 

 { 
     cout << "Right" << endl;

 }else

 { 

 s[12] = c; 

 cout << s << endl; 

 } 

 system("PAUSE");

 return 0; 
}