C1111233131211111211113313331333133313231323331323132322131132311   >>    C111123313121111121111331333133313331323132333132313232213113231   <<    C1111233131211111211113313331333133313231323331323132322131132313   >>      C1111233131211111211113313331333133313231323331323132322131132312   >>