diff --git a/Solver.cpp b/Solver.cpp
index 2c470a2..62e86a3 100644
--- a/Solver.cpp
+++ b/Solver.cpp
@@ -73,7 +73,7 @@ void Solver::Execute_Linear(double val1, double val2) {
     std::cout << "\nSolution:" << std::endl;
     std::cout << solution << std::endl;
 
-    std::ofstream file("matrix_linear.txt");
+    std::ofstream file("matrix_linear_" + std::to_string(N) + ".txt");
     for (int i = 0; i < solution.size(); i++) {
         file << solution(i) << ' ';
     }
@@ -152,7 +152,7 @@ void Solver::Execute_Cubic(double val1, double val2) {
     std::cout << "\nSolution:" << std::endl;
     std::cout << solution << std::endl;
     
-    std::ofstream file("matrix_cubic.txt");
+    std::ofstream file("matrix_cubic_" + std::to_string(N) + ".txt");
     for (int i = 0; i < solution.size(); i++) {
         file << solution(i) << ' ';
     }