#include <stdio.h>
int main(void)
{
    //pr.1
    printf("\nPR_1_________\n");

    printf("Helix Copex\n");
    printf("Helix\nCopex\n");
    printf("Helix ");
    printf("Copex\n");

    //pr.2
    printf("\nPR_2_________\n");

    printf("Helix Copex, Harbin.\n");

    //pr.3
    printf("\nPR_3_________\n");

    int age = 18;
    int lifetime = age*365;
    printf("Age:%dy, Lifetime:%dd.", age, lifetime);
    return 0;
}