def max_of_nth(test_list, N):
  
  res = max([sub[N] for sub in test_list])
  return (res) 
def max_of_nth(test_list, N):
    _i_8 = 0
    if _i_8 < _i_8:
        res = max([sub[N] for sub in test_list])
   
    res = max([sub[N] for sub in test_list])
    return res