diff --git a/mini_dz3.cpp b/mini_dz3.cpp
new file mode 100644
index 00000000..63c3b7ce
--- /dev/null
+++ b/mini_dz3.cpp
@@ -0,0 +1,31 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#include <functional>
+
+int main() {
+    std::vector<std::string> lines = {
+        "Minecraft film",
+        "KRK the best",
+        "15 symbols",
+        "sumoT"
+    };
+
+    std::function<std::vector<int>(const std::vector<std::string>&)> countSymbols =
+        [](const std::vector<std::string>& vec) {
+        std::vector<int> result;
+        for (const auto& str : vec) {
+            result.push_back(str.length());
+        }
+        return result;
+        };
+
+    std::vector<int> lengths = countSymbols(lines);
+
+    for (int len : lengths) {
+        std::cout << len << std::endl;
+    }
+
+    return 0;
+
+}
\ No newline at end of file