C3123121111113313121111331323133313331323133313231333133313331333132233222321   >>    C312312111111331312111133132313331333132313331323133313331333133313223322232   <<    C3123121111113313121111331323133313331323133313231333133313331333132233222323   >>      C3123121111113313121111331323133313331323133313231333133313331333132233222322   >>