A - Six Characters

https://atcoder.jp/contests/abc251/submissions/31656570

AtCoder/ABC251/A/A.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+#include <string>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+std::string s;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+
+    cin >> s;
+    for (int i = 0; i < 6; i++) {
+        cout << s[i % s.size()];
+    }
+    cout << endl;
+
+    return 0;
+}