#include <stdio.h>

int main () {
    char c;
    int zbir=0;
    while(1) {
        scanf("%c",&c);
        if(c=='.')
            break;
        if((c>='0')&&(c<='9')) {
            zbir+=c-'0';
        }
        if((c>='a')&&(c<='f')) {
            zbir+=c-'a'+10;
        }
        if((c>='A')&&(c<='F')) {
            zbir+=c-'A'+10;
        }
    }
    if((zbir%16)==0) {
        if(zbir%100==16)
            printf("Poln pogodok");
        else
            printf("Pogodok");
    } else
        printf("%d",zbir);
}