diff --git a/Week04/functions_ege_enc.py b/Week04/functions_ege_enc.py
new file mode 100644
index 00000000..625da55b
--- /dev/null
+++ b/Week04/functions_ege_enc.py
@@ -0,0 +1,31 @@
+custom_power = lambda x=0, /, e=1: x**e
+
+def custom_equation(x: int = 0, y: int = 0, /, a: int = 1, b: int = 1, *, c: int = 1) -> float:
+    """
+    Calculates the result based on the provided formula.
+
+    :param x: The positional-only integer base parameter, default is 0
+    :param y: The positional-only integer base parameter, default is 0
+    :param a: The positional-or-keyword integer exponent parameter, default is 1
+    :param b: The positional-or-keyword integer exponent parameter, default is 1
+    :param c: The keyword-only integer divisor parameter, default is 1
+    :return: The result of (x**a + y**b)/c as a float
+    :rtype: float
+    """
+    return float((x**a + y**b) / c)
+
+def fn_w_counter() -> tuple:
+    if not hasattr(fn_w_counter, 'call_counter'):
+        fn_w_counter.call_counter = 0
+        fn_w_counter.caller_stats = {}
+    
+    caller_name = __name__
+
+    fn_w_counter.call_counter += 1
+
+    if caller_name in fn_w_counter.caller_stats:
+        fn_w_counter.caller_stats[caller_name] += 1
+    else:
+        fn_w_counter.caller_stats[caller_name] = 1
+
+    return fn_w_counter.call_counter, fn_w_counter.caller_stats