diff --git a/c/add_test.txt b/c/add_test.txt
new file mode 100644
index 0000000..8be1c77
--- /dev/null
+++ b/c/add_test.txt
@@ -0,0 +1 @@
+hyperfine './addint 2 3'
\ No newline at end of file
diff --git a/c/addint.c b/c/addint.c
new file mode 100644
index 0000000..b5d7e1c
--- /dev/null
+++ b/c/addint.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h> // atoi
+
+int main(int argc, char *argv[]) {
+  // 1. Валидация ввода
+  if (argc != 3) {
+    printf("ER: input parameters \n");
+    return 1;
+  }
+
+  // 2. Формирование массива int
+  int x1 = atoi(argv[1]);
+  int x2 = atoi(argv[2]);
+
+  printf("OK:%d \n", x1+x2);
+
+  return 0;
+}