import os
import re
import string
 
 
file = open("data2.txt")
p1 = re.compile(r"^(\d{16})\s+(\d{3})")
re.compile(p1)
for line in file:
    print(line)
    match1 = re.search(p1,line)
    #print(match1.group(0))

    sCard = match1.group(1)
    sValue=match1.group(2)
    print(sCard)
    print(sValue)
 
    b = re.findall(r"\d{2}",sCard)
    # remove r or one \ if want signle     c =r'\\x'.join(b)
    c= r'\\x'+c
    print(c)