C1111133313331323223313331333133313311211111211331333133321132111123311   >>    C111113331333132322331333133313331331121111121133133313332113211112331   <<    C1111133313331323223313331333133313311211111211331333133321132111123313   >>      C1111133313331323223313331333133313311211111211331333133321132111123312   >>