#include<bits/stdc++.h>
using namespace std;
bool mark[100005]={false};

void sieve()
{
    int i,j,k=0;
    mark[0]=true;
    for(i=2;i*i<=100000;i++)
    {
        if(mark[i]==false)
        {
            for(j=i*i;j<=100000;j+=i)
            {
                mark[j]=true;
            }
        }
    }
}
int main()
{
    sieve();
    int i;
    string s;
    while(cin>>s)
    {
        int sum=0;
        for(i=0;i<s.size();i++)
        {
            if(s[i]>='a' && s[i]<='z')
                sum+=s[i]- 'a' +1;
            else
                sum+=s[i]- 'A' +27;
        }
        if(mark[sum]==false)
            cout<<"It is a prime word."<<endl;
         else
            cout<<"It is not a prime word."<<endl;
    }
    return 0;
}