import java.util.BitSet;
public class Main {
public static void main(String[] args) {
BitSet bs = new BitSet();
bs.set(31);
bs.set(15);
bs.set(18);
int[] intArray = bits2Ints(bs);
for (int i = 0; i < intArray.length; i++)
System.out.println(toBinary(intArray[i]));
}
static int[] bits2Ints(BitSet bs) {
int[] temp = new int[bs.size() / 32];
for (int i = 0; i < temp.length; i++)
for (int j = 0; j < 32; j++)
if (bs.get(i * 32 + j))
temp[i] |= 1 << j;
return temp;
}
static String toBinary(int num) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < 32; i++) {
sb.append(((num & 1) == 1) ? '1' : '0');
num >>= 1;
}
return sb.reverse().toString();
}
}
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