diff --git a/.autocp b/.autocp
index 15f909f..4c19402 100644
--- a/.autocp
+++ b/.autocp
@@ -1 +1 @@
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CSES Problem Set/Digit_Queries.cpp":{"pathString":"CSES - CSES Problem Set/Digit_Queries.cpp","linkedProblemId":{"first":"CSES - CSES Problem Set","second":"Digit Queries"},"testcases":[{"name":"Sample Testcase #1","input":"3\n7\n19\n12\n","output":"7\n4\n1\n"}]},"CSES - CSES Problem Set/Grid_Paths.cpp":{"pathString":"CSES - CSES Problem Set/Grid_Paths.cpp","linkedProblemId":{"first":"CSES - CSES Problem Set","second":"Grid Paths"},"testcases":[{"name":"Sample Testcase #1","input":"??????R??????U??????????????????????????LD????D?\n","output":"201\n"}]},"CSES - CSES Problem Set/Distinct_Numbers.cpp":{"pathString":"CSES - CSES Problem Set/Distinct_Numbers.cpp","linkedProblemId":{"first":"CSES - CSES Problem Set","second":"Distinct Numbers"},"testcases":[{"name":"Sample Testcase #1","input":"5\n2 3 2 2 3\n","output":"2\n"}]},"CSES - CSES Problem Set/Apartments.cpp":{"pathString":"CSES - CSES Problem Set/Apartments.cpp","linkedProblemId":{"first":"CSES - CSES Problem Set","second":"Apartments"},"testcases":[{"name":"Sample Testcase #1","input":"4 3 5\n60 45 80 60\n30 60 75\n","output":"2\n"}]},"CSES - CSES Problem Set/Ferris_Wheel.cpp":{"pathString":"CSES - CSES Problem Set/Ferris_Wheel.cpp","linkedProblemId":{"first":"CSES - CSES Problem Set","second":"Ferris Wheel"},"testcases":[{"name":"Sample Testcase #1","input":"4 10\n7 2 3 9\n","output":"3\n"}]},"CSES - CSES Problem Set/Concert_Tickets.cpp":{"pathString":"CSES - CSES Problem Set/Concert_Tickets.cpp","linkedProblemId":{"first":"CSES - CSES Problem Set","second":"Concert Tickets"},"testcases":[{"name":"Sample Testcase #1","input":"5 3\n5 3 7 8 5\n4 8 3\n","output":"3\n8\n-1\n"}]}}}
\ No newline at end of file
diff --git a/CSES - CSES Problem Set/Concert_Tickets.cpp b/CSES - CSES Problem Set/Concert_Tickets.cpp
new file mode 100644
index 0000000..c436643
--- /dev/null
+++ b/CSES - CSES Problem Set/Concert_Tickets.cpp	
@@ -0,0 +1,23 @@
+//  Concert Tickets
+
+#include<bits/stdc++.h>
+
+using namespace std;
+using ll = long long;
+
+int main() {
+    int n, m; cin >> n >> m;
+    multiset<ll> price;
+    for (int i{}; i < n; i++) {ll a; cin >> a; price.insert(a);}
+    for (int i{}; i < m; i++) {
+        ll v; cin >> v;
+        auto it = price.upper_bound(v);
+        if (it == price.begin()) {
+            cout << -1 << endl;
+        } else {
+            cout << *(--it) << endl;
+            price.erase(it);
+        }
+    }
+    return 0;
+}