#include <bits/stdc++.h>
using namespace std;
int main()
{
	int a,b,c,d;
	int sum1,sum2,sum,y;
	scanf("%d-%d-%d-%d",&a,&b,&c,&d);
	sum1=a*1+(b/100)*2+((b%100)/10)*3+(b%10)*4;
	sum2=(c/10000)*5+((c%10000)/1000)*6+((c%1000)/100)*7+((c%100)/10)*8+(c%10)*9;
	sum=sum1+sum2;
	y=sum%11;
	if(y==d)
	{
		cout<<"right"<<endl;
	}
	else
	{
		printf("%d-%d-%d-%d",a,b,c,y);
	}
	return 0;
}