C1111233133313231133133313331333133313231323331333133313221333133313113233231   >>    C111123313331323113313331333133313331323132333133313331322133313331311323323   <<    C1111233133313231133133313331333133313231323331333133313221333133313113233233   >>      C1111233133313231133133313331333133313231323331333133313221333133313113233232   >>