#include <iostream>
#include <conio.h>
#include <cstdlib>
#include <cstdio>
using namespace std;
int main()
{ string PESEL;
int suma;
cin>>PESEL;
int i[11];
for(int j=0;j<12;j++)
{
i[j]=PESEL[j] - '0';
}
suma=i[0]*1+i[1]*3+i[2]*7+i[3]*9+i[4]*1+i[5]*3+i[6]*7+i[7]*9+i[8]*1+i[9]*3+i[10]*1;
if(suma>0)
{
if(suma%10==0 ) cout<<"D";
else cout<<"N";
}
else
cout<<"Niepoprawny PESEL";
return 0;
}
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}