#include <iostream>
using namespace std;
int main() {
string t;
getline(cin,t);
int a[26]={0};
for(int i=0;i<t.size();i++)
{
t[i]=tolower(t[i]);
a[t[i]-'a']++;
}
int f=0;
for(int i=0;i<26;i++){
if(a[i]==0){
f=1;
}
}
if(f==1){
cout<<"not pangram";
}
else{
cout<<"pangram";
}
return 0;
}
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