C11111211113313112113313331333133313331312111133133112233113211331   >>    C1111121111331311211331333133313331333131211113313311223311321133   <<    C11111211113313112113313331333133313331312111133133112233113211333   >>      C11111211113313112113313331333133313331312111133133112233113211332   >>