runner.py

exepath = r"C:\Users\Vladimir\Documents\Work\FHC2018R1\D\evening.exe" # path to the exe-file
path = "\\".join(exepath.split("\\")[:-1:]) # directory with tests (by default they should be in the directory with exe-file)

testCount = 1 # the number of tests

# tests are in the format (input: xxx output: xxx.a)

import subprocess

for i in range(testCount):
	name = i + 1
	fin = open(str(path + '\\' + "%03d" % name), 'r')
	fout = open(str(path + '\\' + "%03d" % name) + '.a', 'w')
	
	p = subprocess.Popen(exepath, stdin=fin, stdout=fout)
	p.communicate()