#include <stdio.h>

int main ()
{
int input;
    scanf ("%d", &input);
    switch (input)
    {
        case 1:
            printf ("one\n");
        break;
        case 2:
            printf ("two\n");
        break;
        case 3:
            printf ("three\n");
        break;
        case 4:
            printf ("four\n");
        break;
        default :
            printf ("default\n");
    }
    return 0;
}