C111123313331323113313331333133313331322331313312111133132213112113121   >>    C11112331333132311331333133313331333132233131331211113313221311211312   <<    C111123313331323113313331333133313331322331313312111133132213112113123   >>      C111123313331323113313331333133313331322331313312111133132213112113122   >>