How to read a input of numbers from a file colum wise

Question

for Eg if I/p is
2
1 3
4 6
the o/p must be
2
1
4

Answer 1

split file into list of lines, then read line[0] in each otem/line. that's in general
but notice it also depends alot on user requirements.

Answer 2

import sys

file = open("path_you_file")

while file:
line = file.readline()
print(line[0])

# if it is good, like my code)))