#include <stdio.h>

int main ()
{

    int b;
    printf("Enter integer ");
    scanf("%d", &b);

    unsigned int mask = 0x80000000; // in binary 1000 0000 0000 0000

    for (int i=0; i<32; i++)
    {
        unsigned int bit = b & mask; //get bit, using bitwise AND
        bit = bit>>(31-i); // shift bit to right-hand end
        printf("%d", bit); // output
        mask = mask >> 1; // shift mask one place right
    }
    printf("\n");

    return 0;
}