C11111333133313232233133313331333133313231312111133231323331322311   >>    C1111133313331323223313331333133313331323131211113323132333132231   <<    C11111333133313232233133313331333133313231312111133231323331322313   >>      C11111333133313232233133313331333133313231312111133231323331322312   >>