C313131323331311331322331322331311211331323331322331323131211111   >>    C31313132333131133132233132233131121133132333132233132313121111   <<    C313131323331311331322331322331311211331323331322331323131211113   >>      C313131323331311331322331322331311211331323331322331323131211112   >>