C11111211113313112113313331333133313331333131211113313331323222321322121   >>    C1111121111331311211331333133313331333133313121111331333132322232132212   <<    C11111211113313112113313331333133313331333131211113313331323222321322123   >>      C11111211113313112113313331333133313331333131211113313331323222321322122   >>