C1111233133313231133133313331333133313231312111133133313232313332223131   >>    C111123313331323113313331333133313331323131211113313331323231333222313   <<    C1111233133313231133133313331333133313231312111133133313232313332223133   >>      C1111233133313231133133313331333133313231312111133133313232313332223132   >>