C212212121212113313221323131323132313132322331323132233132313232233321   >>    C21221212121211331322132313132313231313232233132313223313231323223332   <<    C212212121212113313221323131323132313132322331323132233132313232233323   >>      C212212121212113313221323131323132313132322331323132233132313232233322   >>