diff --git a/TaskC04/Makefile b/TaskC04/Makefile
new file mode 100644
index 0000000..e69de29
diff --git a/TaskC04/run b/TaskC04/run
new file mode 100644
index 0000000..31d0e75
--- /dev/null
+++ b/TaskC04/run
@@ -0,0 +1,9 @@
+#!/usr/bin/python3
+
+import sys
+import re
+
+for line in sys.stdin:
+    if re.match(r'(555\s[0-9][0-9][0-9]\s|[0-9][0-9][0-9]$)|(555(-)[0-9][0-9][0-9](-)|[0-9][0-9][0-9]$)',line):
+        print("yes")
+    else: print("no")