#!/usr/bin/env python3 P=[[3,0,1,2,4,5,6,7,11,8,9,10,12,13,14,15,16,17,18,19],[4,1,2,0,7,5,6,3,16,9,10,11,19,13,14,15,12,17,18,8],[1,5,2,3,0,4,6,7,8,17,10,11,12,16,14,15,9,13,18,19],[0,1,2,3,5,6,7,4,8,9,10,11,13,14,15,12,16,17,18,19],[0,2,6,3,4,1,5,7,8,9,18,11,12,13,17,15,16,10,14,19],[0,1,3,7,4,5,2,6,8,9,10,19,12,13,14,18,16,17,11,15]] O=[[0]*20,[2,0,0,1,1,0,0,2]+[0]*12,[1,2,0,0,2,1,0,0]+[0,1,0,0,0,1,0,0,1,1,0,0],[0]*20,[0,1,2,0,0,2,1,0]+[0]*12,[0,0,1,2,0,0,2,1]+[0,0,0,1,0,0,0,1,0,0,1,1]] print(len(O),[len(v) for v in O])