diff --git a/zeta_C/10818.c b/zeta_C/10818.c
new file mode 100644
index 0000000..5174b9e
--- /dev/null
+++ b/zeta_C/10818.c
@@ -0,0 +1,18 @@
+#include<stdio.h>
+
+int main() {
+    int min=1e6; int max=-1e6;
+    int N; int a;
+    scanf("%d", &N);
+    
+    for (int i=0;i<N;i++) {
+        scanf("%d", &a);
+        if (a < min) {
+            min = a;
+        }
+        if (a > max){
+            max = a;
+        }
+    }
+    printf("%d %d", min, max);
+}
\ No newline at end of file
diff --git a/zeta_C/completed/10869.c b/zeta_C/completed/10869.c
new file mode 100644
index 0000000..c13886a
--- /dev/null
+++ b/zeta_C/completed/10869.c
@@ -0,0 +1,11 @@
+#include<stdio.h>
+
+int main() {
+    int a; int b;
+    scanf("%d %d", &a, &b);
+    printf("%d\n", a+b);
+    printf("%d\n", a-b);
+    printf("%d\n", a*b);
+    printf("%d\n", a/b);
+    printf("%d\n", a%b);
+}
\ No newline at end of file
diff --git a/zeta_kotlin/stdin.txt b/zeta_kotlin/stdin.txt
new file mode 100644
index 0000000..e69de29