C1111233133313231133133313331333133313231331133133313231323132313221231311   >>    C111123313331323113313331333133313331323133113313331323132313231322123131   <<    C1111233133313231133133313331333133313231331133133313231323132313221231313   >>      C1111233133313231133133313331333133313231331133133313231323132313221231312   >>