solution list
011011001.....B.........BBB......AAABIII....C.AAI.I...KCCCFFFEE.KKKKC.LFJEE.GGGHHLFJE...G.HHL.J....GDDHLJJ......DDL.........D.....
011011001.....B.........BBB......AAABIII....D.AAI.I...DDHHFFFEE.DDHHH.LFJEE.GGGCCLFJE...G.CKL.J....GCCKLJJ......KKL.........K.....
011011001.....B.........BBB......AAABCCG....D.AAC.G...DDHHCCGGG.DDHHH.FKKKK.LLLLLFIIK...J.FFF.I....JJJJEII......EEE.........E.....
011011001.....B.........BBB......AAABIII....K.AAI.I...KKKKFFFEE.LLLLL.CFJEE.GGGCCCFJE...G.CHH.J....GDDHHJJ......DDH.........D.....
011011001.....B.........BBB......AAABGCC....D.AAG.C...DDHHGGGCC.DDHHH.FKKKK.LLLLLFIIK...J.FFF.I....JJJJEII......EEE.........E.....
011011001.....B.........BBB......AAABIII....D.AAI.I...DDHHFFFEE.DDHHH.LFJEE.CCGGGLFJE...C.GKL.J....CCGKLJJ......KKL.........K.....