#!/usr/bin/env python3
m=1004
g={}
for y in range(1024):
 if (y&~m&1023)==0:
  g[0]=g.get(0,0)|1<<y
print((g[0]>>512)&2)
print(bool(g[0]&(1<<512)))
print(512 in [y for y in range(1024) if (y&~m&1023)==0])