C1111233133313231133133313311211113313231323223331211111333131133113121   >>    C111123313331323113313331331121111331323132322333121111133313113311312   <<    C1111233133313231133133313311211113313231323223331211111333131133113123   >>      C1111233133313231133133313311211113313231323223331211111333131133113122   >>