diff --git a/problem/P1598/P1598.cpp b/problem/P1598/P1598.cpp
new file mode 100644
index 00000000..6906d7a9
--- /dev/null
+++ b/problem/P1598/P1598.cpp
@@ -0,0 +1,41 @@
+// R38666209
+
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    char c;
+    int  cnt[30];
+    memset(cnt, 0x00, sizeof(cnt));
+    while (cin >> c) {
+        cnt[c - 'A']++;
+    }
+    for (int i = 0; i <= 405; i++) {
+        int flag = 0, max = 0, end = 0;
+        for (int j = 0; j < 26; j++) {
+            if (cnt[j] >= max) {
+                max = cnt[j];
+                end = j;
+                if (max != 0) {
+                    flag = 1;
+                }
+            }
+        }
+        if (flag == 0) {
+            printf("A B C D E F G H I J K L M N O P Q R S T U V W X Y Z");
+            break;
+        }
+        for (int j = 0; j <= end; j++) {
+            if (cnt[j] == max) {
+                printf("%s%c", j == 0 ? "" : " ", '*');
+                cnt[j]--;
+            }
+            else {
+                printf("%s%s", j == 0 ? "" : " ", " ");
+            }
+        }
+        printf("\n");
+    }
+    return 0;
+}