C3123223313331322121111331333133313231333133313331333133313112113123231   >>    C312322331333132212111133133313331323133313331333133313331311211312323   <<    C3123223313331322121111331333133313231333133313331333133313112113123233   >>      C3123223313331322121111331333133313231333133313331333133313112113123232   >>