C212212121212113313132333131311331323331323132233131133132313223313233321   >>    C21221212121211331313233313131133132333132313223313113313231322331323332   <<    C212212121212113313132333131311331323331323132233131133132313223313233323   >>      C212212121212113313132333131311331323331323132233131133132313223313233322   >>