C111123313121111121111331333132313331323133313332233132312112321   >>    C11112331312111112111133133313231333132313331333223313231211232   <<    C111123313121111121111331333132313331323133313332233132312112323   >>      C111123313121111121111331333132313331323133313332233132312112322   >>