C11111333133313232233133313331333131123313233313231333112111221   >>    C1111133313331323223313331333133313112331323331323133311211122   <<    C11111333133313232233133313331333131123313233313231333112111223   >>      C11111333133313232233133313331333131123313233313231333112111222   >>