C212212121212113313221323131323131323132322331323132233132333132311331311121   >>    C21221212121211331322132313132313132313232233132313223313233313231133131112   <<    C212212121212113313221323131323131323132322331323132233132333132311331311123   >>      C212212121212113313221323131323131323132322331323132233132333132311331311122   >>