C1232111311331322331313231323132333132333131323131333132313232221111   >>    C123211131133132233131323132313233313233313132313133313231323222111   <<    C1232111311331322331313231323132333132333131323131333132313232221113   >>      C1232111311331322331313231323132333132333131323131333132313232221112   >>