C11111211113313112113313331333133313331312111133133313332322233111   >>    C1111121111331311211331333133313331333131211113313331333232223311   <<    C11111211113313112113313331333133313331312111133133313332322233113   >>      C11111211113313112113313331333133313331312111133133313332322233112   >>