#include <stdio.h>
int main()
{
    int count,sum,mark;
    char c,key[14];
    scanf("%s",key);
    sum=(key[0]-'0')*1+(key[2]-'0')*2+(key[3]-'0')*3+(key[4]-'0')*4+(key[6]-'0')*5+(key[7]-'0')*6+(key[8]-'0')*7+(key[9]-'0')*8+(key[10]-'0')*9;
    sum%=11;
    if (key[12]=='X') mark=10;
    else mark=key[12]-'0';
    if (sum==mark)
        printf("Right");
    else
    {
        if (sum==10) key[12]='X';
        else key[12]=sum+'0';
        printf("%s",key);
    }
    return 0;
}
/**************************************************************
	Problem: 2276
	User: admin
	Language: C
	Result: Accepted
	Time:52 ms
	Memory:1144 kb
****************************************************************/