diff --git a/Atcoder/abc352/A.cpp b/Atcoder/abc352/A.cpp
new file mode 100644
index 0000000..aad06da
--- /dev/null
+++ b/Atcoder/abc352/A.cpp
@@ -0,0 +1,24 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+
+int main() {
+
+    int n, x, y, z; cin >> n >> x >> y >> z;
+    vector<int> values(n,0);
+    while(x != y) {
+        if(x <= y) {
+            values[x] = 1;
+            x++;
+        
+        }
+        else {
+            values[x] = 1;
+            x--;
+        }
+    }
+
+    cout << (values[z] ? "Yes" : "No") << endl;
+
+    return 0;
+}
\ No newline at end of file
diff --git a/Atcoder/abc352/B.cpp b/Atcoder/abc352/B.cpp
new file mode 100644
index 0000000..d24cbcf
--- /dev/null
+++ b/Atcoder/abc352/B.cpp
@@ -0,0 +1,18 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+
+int main(){
+
+    string s, t; cin >> s >> t;
+    for(int i = 0, j = 0; s[i] != '\0';++j) {
+        if(s[i] == t[j]) {
+            cout << j+1 << " ";
+            i++;
+        }
+    }
+
+    cout << endl;
+    return 0;
+
+}
\ No newline at end of file
diff --git a/Atcoder/abc352/C.cpp b/Atcoder/abc352/C.cpp
new file mode 100644
index 0000000..5d4ba32
--- /dev/null
+++ b/Atcoder/abc352/C.cpp
@@ -0,0 +1,34 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+typedef long long ll;
+
+bool templateSort(pair<ll,ll> a, pair<ll,ll> b) {
+    return a.first > b.first;
+}
+
+int main(){
+
+    int n; cin >> n;
+    vector<pair<ll,ll>> heights(n+1);
+    while(n--) {
+        ll a, b; cin >> a >> b;
+        heights.emplace_back(make_pair(a,b));
+    }
+
+    sort(heights.begin(),heights.end(),templateSort);
+    int count = heights[0].second;
+    
+    for(int i = 1; i < (int)heights.size(); ++i) {
+        heights[i].first += heights[i-1].first;
+        heights[i].second += heights[i-1].first;
+
+        if(heights[i].second >= count)
+            count = heights[i].second;
+
+    }
+
+    cout << count << endl;
+    return 0;
+
+}
\ No newline at end of file