Programming

#include <stdio.h>

#define BITS_PER_BYTE 8

void hex(long);
void octel(long);
void binary(long);

main()
{
        long n;

        while (scanf("%ld", &n)) {
                hex(n);
                octel(n);
                binary(n);
        }
}

void hex(long n)
{
        printf("  %x\n", n);
}
void octel(long n)
{
        printf("  %o\n", n);
}
void binary(long n)
{
        int count = BITS_PER_BYTE;

        printf("  ");
        while (count--) {
                printf("%d", (n & 128) ? 1 : 0);

                n <<= 1;
        }
        printf("\n");
}