Add seperator in output between days

run_all.py

@@ -10,6 +10,7 @@ for dir in [x for x in sorted(listdir('.')) if isdir(x)]:
     file = dir + '/' + dir + '.py'
     input = dir + '/input.txt'
     if isfile(file) and isfile(input):
+        print('--------------------------------')
         print(dir, ':', sep='')
         start_time = time()
         with Popen(["python3", file], stdout=PIPE, bufsize=1, universal_newlines=True) as p: