C312312111111331312111133133313331333133322331323133313332221211   >>    C31231211111133131211113313331333133313332233132313331333222121   <<    C312312111111331312111133133313331333133322331323133313332221213   >>      C312312111111331312111133133313331333133322331323133313332221212   >>