diff --git a/codeforces/987C.cpp b/codeforces/987C.cpp
new file mode 100644
index 0000000..6829da3
--- /dev/null
+++ b/codeforces/987C.cpp
@@ -0,0 +1,61 @@
+#include <bits/stdc++.h>
+ 
+using namespace std;
+ 
+const long long int inf = 10000000000;
+ 
+const int MAX = 3002;
+ 
+long long int lista[MAX];
+long long int custo[MAX];
+long long int dp[MAX][4];
+ 
+long long int c, a, ans;
+ 
+int n;
+ 
+long long int bruto(int i, int ant, int rest){
+    if(rest == 0)
+        return 0;
+    if(i == n+1)
+        return inf;
+ 
+    if(lista[i] > lista[ant]){
+        if(dp[i][rest] == inf)
+            dp[i][rest] = bruto(i + 1, i, rest - 1) + custo[i];
+ 
+        c = bruto(i + 1, ant, rest);
+ 
+        return min(dp[i][rest], c);
+    } else
+        return bruto( i + 1, ant, rest);
+}
+ 
+void prep(){
+    for(int i = 0; i < n+2; i++)
+        for(int j = 0; j < 4; j++)
+            dp[i][j] = inf;
+}
+ 
+int main() {
+	ios_base::sync_with_stdio(false); cin.tie(0);
+	cin >> n;
+	for(int i = 1; i < n+1; i++){
+        cin >> a;
+        lista[i] = a;
+	}
+	for(int i = 1; i < n+1; i++){
+        cin >> a;
+        custo[i] = a;
+	}
+	prep();
+ 
+	ans = bruto(1, 0, 3);
+ 
+	if(ans < inf)
+        cout << ans;
+    else
+        cout << -1;
+ 
+    cout << endl;
+}
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