C1111133313331323223313331333133313311211111211331333133321132111133131132221   >>    C111113331333132322331333133313331331121111121133133313332113211113313113222   <<    C1111133313331323223313331333133313311211111211331333133321132111133131132223   >>      C1111133313331323223313331333133313311211111211331333133321132111133131132222   >>