21,13 block,1,3,flag block,19,9,flag block,1,4,flag block,19,8,flag block,1,5,flag block,19,7,flag block,2,5,flag block,18,7,flag block,3,5,flag block,17,7,flag block,3,4,flag block,17,8,flag block,2,4,flag block,18,8,flag block,2,3,flag block,18,9,flag block,3,3,flag block,17,9,flag block,10,6,level2 block,6,7,level2 block,14,5,level2 block,4,10,level2 block,16,2,level2 block,5,11,level1 block,15,1,level1 block,7,12,level1 block,13,0,level1 block,7,2,level1 block,13,10,level1 block,7,0,level1 block,13,12,level1 block,7,8,level1 block,13,4,level1 block,3,7,level2 block,17,5,level2 block,4,5,level1 block,16,7,level1 block,8,5,level1 block,12,7,level1 block,6,4,level1 block,14,8,level1 block,10,11,level1 block,10,1,level1 block,9,10,level1 block,11,2,level1 block,1,11,start block,19,1,start block,1,10,start block,19,2,start block,1,12,start block,19,0,start block,2,12,start block,18,0,start block,2,11,start block,18,1,start block,2,10,start block,18,2,start block,0,0,flag block,20,12,flag block,0,1,flag block,20,11,flag block,0,2,flag block,20,10,flag block,0,3,flag block,20,9,flag block,0,4,flag block,20,8,flag block,0,5,flag block,20,7,flag block,0,6,flag block,20,6,flag block,0,7,flag block,20,5,flag block,0,8,flag block,20,4,flag block,0,9,flag block,20,3,flag block,0,10,flag block,20,2,flag block,0,11,flag block,20,1,flag block,0,12,flag block,20,0,flag block,9,4,level2 block,11,8,level2 block,9,3,level1 block,11,9,level1 block,6,1,level1 block,14,11,level1 block,5,3,level1 block,15,9,level1 block,8,8,level2 block,12,4,level2 block,7,10,level1 block,13,2,level1