Converting to hex numbers

/* 0505 Converting to hex numbers */
#include <stdio.h>

main()
{
    printf("Hex(uppercase) Hex(lowercase) Decimal\n");
    printf("%X %x %d\n", 0, 0, 0);
    printf("%X %x %d\n", 1, 1, 1);
    printf("%X %x %d\n", 2, 2, 2);
    printf("%X %x %d\n", 3, 3, 3);
    printf("%X %x %d\n", 4, 4, 4);
    printf("%X %x %d\n", 5, 5, 5);
    printf("%X %x %d\n", 6, 6, 6);
    printf("%X %x %d\n", 7, 7, 7);
    printf("%X %x %d\n", 8, 8, 8);
    printf("%X %x %d\n", 9, 9, 9);
    printf("%X %x %d\n", 10, 10, 10);
    printf("%X %x %d\n", 11, 11, 11);
    printf("%X %x %d\n", 12, 12, 12);
    printf("%X %x %d\n", 13, 13, 13);
    printf("%X %x %d\n", 14, 14, 14);
    printf("%X %x %d\n", 15, 15, 15);
    return 0;
}