C132233133112121111331333133313331333132322331333133112322112121   >>    C13223313311212111133133313331333133313232233133313311232211212   <<    C132233133112121111331333133313331333132322331333133112322112123   >>      C132233133112121111331333133313331333132322331333133112322112122   >>