C132233133112121111331333133313231333133313231133132331123231321   >>    C13223313311212111133133313331323133313331323113313233112323132   <<    C132233133112121111331333133313231333133313231133132331123231323   >>      C132233133112121111331333133313231333133313231133132331123231322   >>