C3123121111113313121111331323133313331323133313231333133313331323223323221   >>    C312312111111331312111133132313331333132313331323133313331333132322332322   <<    C3123121111113313121111331323133313331323133313231333133313331323223323223   >>      C3123121111113313121111331323133313331323133313231333133313331323223323222   >>