#include <iostream>
#include <string>
int main()
{
std::string input;
//take input from user
std::getline(std::cin, input);
//check if the 5th letter(at index 4 since indexing starts with 0) is 1 or 2
if(input.at(4) == '1')
{
std::cout<< "zadochno"<<std::endl;
}
else if(input.at(4) == '2')
{
std::cout << "redovno"<<std::endl;
}
for(int i = 0; i < input.size(); ++i)
{
//check if the all the characters are digits of a number
if(std::isdigit(input[i]))
{
;//std::cout<<"yes digit";
}
else
{
std::cout<<"Please enter a valid number"<<std::endl;
}
}
return 0;
}