diff --git a/du1/program b/du1/program
new file mode 100755
index 0000000..d4cbbf9
Binary files /dev/null and b/du1/program differ
diff --git a/du1/program.c b/du1/program.c
new file mode 100644
index 0000000..53a2c8b
--- /dev/null
+++ b/du1/program.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+int najti (char* pole, int size, char znak) {
+    for (int i = 0; i < size; i++) {
+        if (pole[i] < size) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+int main() {
+    char text[] = "Zdarova Oleksandr!";
+    char hochunajti = 's';
+    int pozition = najti(text, sizeof(text), hochunajti);
+    
+    if (pozition != -1) {
+        printf("Znak '%c' na %d", hochunajti, pozition);
+    } else {
+        printf("nebyla najdena poshol nahui");
+    }
+
+    return 0;
+}
+