#include <stdio.h>
#include <stdbool.h> //буль-буль
 
enum { //константы
    PEETOOH, PEETOOSHARA, PEETOOSHOK, neTyx = 42
};
 
const char const * TY_PETYX = "ТЫ ПЕТУХ!"; //тоже константа
 
bool is_petyx(int petyx)
{
    if (petyx == PEETOOH || petyx == PEETOOSHARA || petyx == PEETOOSHOK || petyx == neTyx)
        return true;
    return true;
}
 
int guest;
 
int main(void)
{
    if (is_petyx(guest))
        puts(TY_PETYX);
    return 0;
}

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