C212212121212113313221323131323132313132322331323132233132313331333132322333221   >>    C21221212121211331322132313132313231313232233132313223313231333133313232233322   <<    C212212121212113313221323131323132313132322331323132233132313331333132322333223   >>      C212212121212113313221323131323132313132322331323132233132313331333132322333222   >>