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)