C3123121111331133132313331333133313331333112113313231333132213112121   >>    C312312111133113313231333133313331333133311211331323133313221311212   <<    C3123121111331133132313331333133313331333112113313231333132213112123   >>      C3123121111331133132313331333133313331333112113313231333132213112122   >>