C3132121111133313233121111331333133313331333133313331333132312312121   >>    C313212111113331323312111133133313331333133313331333133313231231212   <<    C3132121111133313233121111331333133313331333133313331333132312312123   >>      C3132121111133313233121111331333133313331333133313331333132312312122   >>