#include<stdio.h>
int main()
{
	char a[120];
	int maxn=0,minn=120,i,j;
	int b[120];
	int n=0;
	while(n<120)
	{
		b[n]=0;
		n++;
	}
	scanf("%s",a);
	for(i=0;a[i]!='\0';i++)
	{
		for(j=0;j<26;j++)
		{
			if(a[i]==(97+j))
			{
				b[j]=b[j]+1;
				if(maxn<b[j])maxn=b[j];
				if(minn>b[j])minn=b[j];
				break;
			}
		}
	}
	int y=maxn-minn;
	int isprine=0;
	for(int l=2;l<101;l++)
	{
		if(y>l)
		{
			if(y%l==0)
			{
				printf("No Answer\n0");
				isprine=1;
				break;
			}
		}
		
	}
	if(isprine==0)
	{
		printf("Lucky Word\n%d",y);
	}
	return 0;
}