bin/clean_mail @ a945ff0fd02f

#!/usr/bin/env python3

import sys


def next_line():
    l = sys.stdin.readline()
    if not l:
        sys.exit(0)
    return l

# Skip headers
l = next_line()
while l.strip():
    sys.stdout.write(l)
    l = next_line()

# One blank line in between headers and the start of the message
while not l.strip():
    l = next_line()

sys.stdout.write('\n')
sys.stdout.write(l)

# Dump the rest straight through
for l in sys.stdin.readlines():
    sys.stdout.write(l)