C1111233133313231133133313331333133311221123121111133313113313231323233231   >>    C111123313331323113313331333133313331122112312111113331311331323132323323   <<    C1111233133313231133133313331333133311221123121111133313113313231323233233   >>      C1111233133313231133133313331333133311221123121111133313113313231323233232   >>