C2212123313132322331323331323113313231323121212131333132313232121   >>    C221212331313232233132333132311331323132312121213133313231323212   <<    C2212123313132322331323331323113313231323121212131333132313232123   >>      C2212123313132322331323331323113313231323121212131333132313232122   >>