水一波题解

#include<bits/stdc++.h>
using namespace std;
char s[15];
int main(){
	cin>>s;
	int k=1,sum=0;
	for(int i=0;i<=10;i++){
		if(s[i]>='0'&&s[i]<='9'){
			sum = sum + (s[i]-'0')*k;
			k++;
		}
	}
	sum = sum%11;
	char ans;
	if(sum==10) ans='X';
	else ans=sum+'0';
	if(ans==s[12])
		cout<<"Right";
	else{
		s[12]=ans;
		cout<<s;
		}
	return 0;
}