diff --git a/2024/bonus/day03/main.tf b/2024/bonus/day03/main.tf
new file mode 100644
index 0000000..35962f9
--- /dev/null
+++ b/2024/bonus/day03/main.tf
@@ -0,0 +1,11 @@
+variable "input" {
+  type = string
+}
+
+locals {
+  muls = regexall("mul\\((\\d+),(\\d+)\\)", var.input)
+}
+
+output "part1" {
+  value = sum([for mul in local.muls : parseint(mul[1], 10) * parseint(mul[0], 10)])
+}
diff --git a/2024/bonus/tests.tftest.hcl b/2024/bonus/tests.tftest.hcl
index 341da75..09dc5c4 100644
--- a/2024/bonus/tests.tftest.hcl
+++ b/2024/bonus/tests.tftest.hcl
@@ -39,5 +39,21 @@ run "day2" {
     condition     = output.part2 == 4
     error_message = "Part2 output is wrong"
   }
-
+}
+
+run "day3_1" {
+  command = plan
+
+  module {
+    source = "./day03"
+  }
+
+  variables {
+    input = "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))"
+  }
+
+  assert {
+    condition     = output.part1 == 161
+    error_message = "Part1 output is wrong"
+  }
 }