C132233133112121111331333133313331333132313231332121111132322221   >>    C13223313311212111133133313331333133313231323133212111113232222   <<    C132233133112121111331333133313331333132313231332121111132322223   >>      C132233133112121111331333133313331333132313231332121111132322222   >>