C11111333133313232233133313331333132313123231322331323132313231323112113121   >>    C1111133313331323223313331333133313231312323132233132313231323132311211312   <<    C11111333133313232233133313331333132313123231322331323132313231323112113123   >>      C11111333133313232233133313331333132313123231322331323132313231323112113122   >>