C11111211113313112113313331333133313331312111133133322331132221   >>    C1111121111331311211331333133313331333131211113313332233113222   <<    C11111211113313112113313331333133313331312111133133322331132223   >>      C11111211113313112113313331333133313331312111133133322331132222   >>