C1111233133313231133133313231333133313331323312111133133313232311   >>    C111123313331323113313331323133313331333132331211113313331323231   <<    C1111233133313231133133313231333133313331323312111133133313232313   >>      C1111233133313231133133313231333133313331323312111133133313232312   >>