#include <iostream>
#include <string>
#include <vector>
using namespace std;
int main()
{
	string s;
	getline(cin,s);
	vector<bool> mark(26,false);
	int count=0;
	for(int i=0;i<s.size();++i)
	{
		if( (s[i]>='a' && s[i]<='z') || (s[i]>='A' && s[i]<='Z'))
		{
			s[i]=tolower(s[i]);
			if(mark[s[i]-'a']==false)
			{
				mark[s[i]-'a']=true;
				++count;
			}
		}
	}
	if(count==26)
		cout<<"pangram";
	else
		cout<<"not pangram";
}