题解 | #[NOIP2008]ISBN号码#

#include<cstdio>
#include<iostream>
using namespace std;
int main(){
	char a,b,c,d,e,f,g,h,i,j;
	int check;
	scanf("%c-%c%c%c-%c%c%c%c%c-%c",&a,&b,&c,&d,&e,&f,&g,&h,&i,&j);
	check=(a-'0')+(b-'0')*2+(c-'0')*3+(d-'0')*4+(e-'0')*5+(f-'0')*6+(g-'0')*7+(h-'0')*8+(i-'0')*9;
	check%=11;
	if(check==j-'0' || check==10&&j=='X'){
		printf("Right");
		return 0;
	}
	
	else printf("%c-%c%c%c-%c%c%c%c%c-%c",a,b,c,d,e,f,g,h,i,check==10?'X':check+'0');
}