#!/usr/bin/python3
import sys, os, urllib.parse
print("Cache-Control: no-cache")
print("Content-type: text/html\n")
print("POST Echo
")
length = int(os.environ.get("CONTENT_LENGTH", 0))
post_data = sys.stdin.read(length)
params = urllib.parse.parse_qs(post_data)
print("Message Body:
")
for k, v in params.items():
print("- {} = {}
".format(k, v[0]))
print("
")