C1111233133313231133133313331333133313231323331333133313122132311211   >>    C111123313331323113313331333133313331323132333133313331312213231121   <<    C1111233133313231133133313331333133313231323331333133313122132311213   >>      C1111233133313231133133313331333133313231323331333133313122132311212   >>