C313131323331311331322331322331311211331323331313331323331323221232321   >>    C31313132333131133132233132233131121133132333131333132333132322123232   <<    C313131323331311331322331322331311211331323331313331323331323221232323   >>      C313131323331311331322331322331311211331323331313331323331323221232322   >>