C1111233133313231133133313331333133313231331133133313231323132313321221   >>    C111123313331323113313331333133313331323133113313331323132313231332122   <<    C1111233133313231133133313331333133313231331133133313231323132313321223   >>      C1111233133313231133133313331333133313231331133133313231323132313321222   >>