C111123313121111121111331323133313233313232233132313331323212321   >>    C11112331312111112111133132313331323331323223313231333132321232   <<    C111123313121111121111331323133313233313232233132313331323212323   >>      C111123313121111121111331323133313233313232233132313331323212322   >>