C1111233133313231133133313331333133313223313133121111331323113233231   >>    C111123313331323113313331333133313331322331313312111133132311323323   <<    C1111233133313231133133313331333133313223313133121111331323113233233   >>      C1111233133313231133133313331333133313223313133121111331323113233232   >>