C1111233133313231133133313331333133313231333211331323132313133313232321   >>    C111123313331323113313331333133313331323133321133132313231313331323232   <<    C1111233133313231133133313331333133313231333211331323132313133313232323   >>      C1111233133313231133133313331333133313231333211331323132313133313232322   >>