#include < iostream.h >

int main()
{
    int n, c, k;
    cout<<"Enter an integer in decimal number system\n";
    cin>>n;
    cout<<n<<"in binary number system is:\n";
    for (c = 31; c >= 0; c--)
        {
            k = n >> c;
            /*Right shift(Binary Divide by 2)*/
            if (k & 1)//k is logically ANDed with 1
                cout<<"1";
            else
                cout<<"0";
        }
    return 0;
}