mie00

def complement(arr):
	return filter(lambda x:x not in arr,range(1,10))
def possibilities(a,arr):
	x,y=a%9,a/9
	return complement(
		map(lambda k:arr[k],
			range(x,81,9)+range(9*y,9*(y+1))+
			map(lambda z:z+(x-x%3)+(y-y%3)*9,[0,1,2,9,10,11,18,19,20])
			)
		)