C132233133112121111331333133313331323132313231333131133132312321   >>    C13223313311212111133133313331333132313231323133313113313231232   <<    C132233133112121111331333133313331323132313231333131133132312323   >>      C132233133112121111331333133313331323132313231333131133132312322   >>