#!/usr/bin/env python3

# Challenge 072
#
# TASK #2 > Lines Range
# Submitted by: Mohammad S Anwar
# You are given a text file name $file and range $A - $B where $A <= $B.
#
# Write a script to display lines range $A and $B in the given file.
#
# Example
# Input:
#     $ cat input.txt
#     L1
#     L2
#     L3
#     L4
#     ...
#     ...
#     ...
#     ...
#     L100
# $A = 4 and $B = 12
# Output:
#     L4
#     L5
#     L6
#     L7
#     L8
#     L9
#     L10
#     L11
#     L12

import sys
FILE, A, B = sys.argv[1], int(sys.argv[2]), int(sys.argv[3])

f = open(sys.argv[1], "r")
lines = [x.rstrip("\n") for x in f.readlines()]
print("\n".join(lines[A-1:B]))