C1111233133313231133133313331333133313223313133121111331322312311   >>    C111123313331323113313331333133313331322331313312111133132231231   <<    C1111233133313231133133313331333133313223313133121111331322312313   >>      C1111233133313231133133313331333133313223313133121111331322312312   >>