diff --git a/run.py b/run.py
index 31d127e..68c0d69 100644
--- a/run.py
+++ b/run.py
@@ -27,7 +27,7 @@ class ProblemRunEnum:
     zeta_C: ProblemRunType = ProblemRunType(
         name="zeta_C",
         dir="./zeta_C",
-        runner="gcc -std=c11 {source} && ./a.out < {input}",
+        runner="gcc -std=c11 {source} && a.out",
         prefix="c",
     )
     zeta_cpp: ProblemRunType = ProblemRunType(
diff --git a/zeta_C/1620.c b/zeta_C/completed/1620.c
similarity index 100%
rename from zeta_C/1620.c
rename to zeta_C/completed/1620.c
diff --git a/zeta_cpp/completed/1448.cpp b/zeta_cpp/completed/1448.cpp
new file mode 100644
index 0000000..f624eb9
--- /dev/null
+++ b/zeta_cpp/completed/1448.cpp
@@ -0,0 +1,30 @@
+#include <algorithm>
+#include <functional>
+#include <iostream>
+
+using namespace std;
+
+int get_max(int N, int *S) {
+    for (int i = 0; i < N - 2; i++) {
+        if (S[i] < S[i + 1] + S[i + 2]) return S[i] + S[i + 1] + S[i + 2];
+    }
+    return -1;
+}
+
+int main() {
+
+    int N;
+    int S[1000000];
+
+    cin >> N;
+
+    for (int i = 0; i < N; i++) {
+        cin >> S[i];
+    }
+
+    sort(S, S + N, greater<>());
+
+    cout << get_max(N, S) << endl;
+
+    return 0;
+}
\ No newline at end of file