C11111211113313112113313331333133313331122112312111133132223312331   >>    C1111121111331311211331333133313331333112211231211113313222331233   <<    C11111211113313112113313331333133313331122112312111133132223312333   >>      C11111211113313112113313331333133313331122112312111133132223312332   >>