diff --git a/src/week2/BOJ2910/BOJ2910_V1.cpp b/src/week2/BOJ2910/BOJ2910_V1.cpp
new file mode 100644
index 0000000..18943dd
--- /dev/null
+++ b/src/week2/BOJ2910/BOJ2910_V1.cpp
@@ -0,0 +1,46 @@
+#include <bits/stdc++.h>
+using namespace std;
+bool sorting_algorithm(tuple<int, int, int> a, tuple<int, int, int> b) {
+    if (get<1>(a) != get<1>(b)) {
+        return get<1>(a) > get<1>(b);
+    }
+    return get<2>(a) < get<2>(b);
+}
+int main() {
+
+    ios_base::sync_with_stdio(false);
+    cin.tie(NULL);
+    cout.tie(NULL);
+
+    int N,C;
+    cin >> N >> C;
+
+    //입력 숫자, 입력 숫자 개수, 입력 숫자의 입력순서
+    map<int, tuple<int, int, int> > m;
+    vector<tuple<int, int, int> > ret;
+
+    for (int i = 0; i < N; i++) {
+        int temp;
+        cin >> temp;
+        if (m.find(temp) != m.end()) {
+            get<1>(m[temp])++;
+        } else {
+            m[temp] = {temp, 1, i};
+        }
+    }
+
+    for (auto it : m) {
+        ret.push_back(it.second);
+    }
+
+    sort(ret.begin(), ret.end(), sorting_algorithm);
+
+    for (auto it : ret) {
+        for (int i=0; i<get<1>(it); i++) {
+            cout << get<0>(it) << " ";
+        }
+    }
+
+
+    return 0;
+}
\ No newline at end of file