C1111133313331323223313331333133313331323133313331333222313231111   >>    C111113331333132322331333133313331333132313331333133322231323111   <<    C1111133313331323223313331333133313331323133313331333222313231113   >>      C1111133313331323223313331333133313331323133313331333222313231112   >>