2.1

from csv import reader

csv_file = open(input(''), encoding='utf_8_sig')
csv_reader = reader(csv_file)
all_data = [current_data for current_data in csv_reader]

print(all_data[0],
      [x for x in all_data[1:]
       if len(x) == len(all_data[0]) and x.count('') == 0], sep='\n')