@@ -0,0 +1,41 @@
+package backjoon;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+// https://www.acmicpc.net/problem/2675
+// 문자열 반복
+public class _2675 {
+
+  public static void main(String[] args) throws IOException {
+    //memory 11536 runtime 96
+    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    int T = Integer.parseInt(br.readLine());
+
+    for(int i = 0; i < T; i++) {
+
+      String[] str = br.readLine().split(" ");
+      // String to int
+      int R = Integer.parseInt(str[0]);
+      String S = str[1];
+
+      for(int j = 0; j < S.length(); j++) {
+        for(int k = 0; k < R; k++) {
+          System.out.print(S.charAt(j));
+        }
+      }
+      System.out.println();
+    }
+  }
+}
+/*
+input
+2
+3 ABC
+5 /HTP
+
+output
+AAABBBCCC
+/////HHHHHTTTTTPPPPP
+ */