diff --git a/conv_.cpp b/conv_.cpp
index 62adee6008a0ab10260ab69c6f186738f48aa983..82a7c402ce0d8a5ef588a713085734e793a876c8 100644
--- a/conv_.cpp
+++ b/conv_.cpp
@@ -17,7 +17,7 @@ double duration;
 int main()
 {
     welcome();
-    cout_mat(conv_test(CreateRandMat(3,3),1,2));
+    cout<<(conv_test(CreateRandMat(3,3),1,2))<<endl;
     return 0;
 
 }
\ No newline at end of file
diff --git a/ma b/ma
index 4fab05d65282834b63ab851329b73bf515c4a0ef..f3f3ed9625a3869c04dcc73dd46a055617349503 100755
Binary files a/ma and b/ma differ
diff --git a/matrix/matrix_pro.h b/matrix/matrix_pro.h
index dce9be3d9b375d1a1d567d5f7e20d44fee621f11..b9c9ea6e0e897a884b3f46e18f3e3c7ae0fc8db3 100644
--- a/matrix/matrix_pro.h
+++ b/matrix/matrix_pro.h
@@ -62,8 +62,6 @@ Matrix subtract(Matrix mid1,Matrix mid2)
 	{
 		for(int j=0; j<mid1.col; j++)
 		{
-			//cout<<" mid1.matrix[i][j]"<< mid1.matrix[i][j]<<"mid2.matrix[i][j]"<<mid2.matrix[i][j]<<endl;
-
 			result_subtract.matrix[i][j] = mid1.matrix[i][j]-mid2.matrix[i][j];
 		}
 	}
@@ -242,7 +240,7 @@ Matrix iloc(Matrix mid1,int start_x=0,int end_x=0,int start_y=0,int end_y=0)
 	{
 		end_x = mid1.row;
 	}
-	cout<<mid1.row<<end_x<<" "<<start_x<<" "<<end_y<<" "<<start_y<<endl;
+	// cout<<mid1.row<<end_x<<" "<<start_x<<" "<<end_y<<" "<<start_y<<endl;
 	int new_row = end_x-start_x;
 	int new_col = end_y-start_y;
 //	cout<<"nc"<<new_col<<" nr"<<new_row<<endl;
@@ -251,8 +249,6 @@ Matrix iloc(Matrix mid1,int start_x=0,int end_x=0,int start_y=0,int end_y=0)
 	{	
 		for(int index_y=start_y;index_y<end_y;++index_y)
 		{
-		//	cout<<"start: "<<index_x<<",end: "<<index_y<<endl;
-		//	cout<<"re: "<<mid1.matrix[index_x][index_y]<<endl;
 		mid_return.matrix[index_x-start_x][index_y-start_y] = mid1.matrix[index_x][index_y];
 		}
 	}
@@ -341,12 +337,13 @@ Matrix get_row(Matrix mid1,int index)
 	}
 	return mid2;
 }
-Matrix conv_test(Matrix mid1,int stride = 1,int kernel_size = 3)
+double conv_test(Matrix mid1,int stride = 1,int kernel_size = 3)
 {
 	Matrix kernel = CreateRandMat(kernel_size,kernel_size);
 	cout_mat(kernel);
 	Matrix crop_pic = iloc(mid1,0,kernel.col,0,kernel.row);
-	Matrix result = mul(crop_pic,kernel);
+	cout_mat(crop_pic);
+	double result = matrix_sum(mul_simple(crop_pic,kernel));
 	return result;
 }
 #endif
diff --git a/welcome/score_wel.cpp b/welcome/score_wel.cpp
index 6a9edead3dec56216b7a54a117675b9f0b751c99..ff58ea07e1890325dfadc169e62318a7e1e11dcc 100644
--- a/welcome/score_wel.cpp
+++ b/welcome/score_wel.cpp
@@ -8,17 +8,13 @@
 #define random(x) (rand()%x)
 using namespace std;
 int welcome(){
-	cout<<"----------";
-	cout<<"Hello This is Edge"<<"----------"<<endl;
     fstream input_stream;
 	const char* candidates[] = {"./welcome/2.txt","./welcome/3.txt","./welcome/big.txt"};
 	srand((unsigned int)time(NULL));
     input_stream.open(candidates[rand()%3],ios::in);
-	cout<<"new"<<input_stream.is_open()<<endl;
     char input[1000000]; 
 	int cnt=0;
     if(input_stream.is_open()){ 
-		cout<<"yes\n"; 
         while(!input_stream.eof()){ 
             input_stream.getline(input,999);  
             cout<<input<<endl;