1: 4 2: 4 3: 4 4: 4 5: 4 6: 4 7: 4 8: 4 9: 0 10: 0 11: 0 12: 0 13: 1 14: 1 15: 1 16: 1 17: 0 18: 0 19: 0 20: 0