C1232111311331322331313231323132333132333131323131333132313233221   >>    C123211131133132233131323132313233313233313132313133313231323322   <<    C1232111311331322331313231323132333132333131323131333132313233223   >>      C1232111311331322331313231323132333132333131323131333132313233222   >>