C111113331333132322331333133313331323133313233213133313311232212111   >>    C11111333133313232233133313331333132313331323321313331331123221211   <<    C111113331333132322331333133313331323133313233213133313311232212113   >>      C111113331333132322331333133313331323133313233213133313311232212112   >>