C1232111311331322331313231323132333132333131323131333132313331323132322121   >>    C123211131133132233131323132313233313233313132313133313231333132313232212   <<    C1232111311331322331313231323132333132333131323131333132313331323132322123   >>      C1232111311331322331313231323132333132333131323131333132313331323132322122   >>