C132233133112121111331333133313331333132313231332121111132212331   >>    C13223313311212111133133313331333133313231323133212111113221233   <<    C132233133112121111331333133313331333132313231332121111132212333   >>      C132233133112121111331333133313331333132313231332121111132212332   >>