C21221212121323223313131323132322331323223313222233132322231311331   >>    C2122121212132322331313132313232233132322331322223313232223131133   <<    C21221212121323223313131323132322331323223313222233132322231311333   >>      C21221212121323223313131323132322331323223313222233132322231311332   >>