diff --git a/gol.c b/gol.c
index 9a75a11..39c0477 100644
--- a/gol.c
+++ b/gol.c
@@ -2,20 +2,27 @@
 
 #define SIZE 512
 
-
-
-int main()
-{
-    bool grid[SIZE][SIZE];
-
-    for(int i = 0; i < SIZE;){
-	for(int j = 0; i < SIZE;){
+void initialize_grid(bool grid[SIZE][SIZE]){
+    for(int i = 0; i < SIZE; i++){
+	for(int j = 0; i < SIZE; i++){
 	    grid[i][j] = false;
-	}
+	}    
     }
+}
 
-    for(int i = 0; i < SIZE;){
-	for(int j = 0; i < SIZE;){
+void mirror_grid(bool grid[SIZE][SIZE], bool mirror[SIZE][SIZE]){
+    for(int i = 0; i < SIZE; i++){
+	for(int j = 0; i < SIZE; i++){
+	    mirror[i][j] = grid[i][j];
+	}    
+    }
+}
+
+void simulate_grid(bool grid[SIZE][SIZE], bool mirror[SIZE][SIZE]){
+
+     mirror_grid(grid, mirror);
+     for(int i = 0; i < SIZE; i++){
+	for(int j = 0; i < SIZE; i++){
 	    int neighbours = 0;
 	    
 	    int nx_prawo = i + 1 > SIZE ? 0 + (i + 1 - SIZE) : i + 1;
@@ -30,20 +37,48 @@ int main()
 	    int nx_dol = i;
 	    int ny_dol = j - 1 < 0 ? SIZE - (j - 1 + SIZE) : j - 1;
 
-	    neighbours = grid[nx_prawo][ny_prawo] == true ? neighbours + 1 : neighbours;
-	    neighbours = grid[nx_lewo][ny_lewo] == true ? neighbours + 1 : neighbours;
-	    neighbours = grid[nx_gora][ny_gora] == true ? neighbours + 1 : neighbours;
-	    neighbours = grid[nx_dol][ny_dol] == true ? neighbours + 1 : neighbours;
+	    neighbours = mirror[nx_prawo][ny_prawo] == true ? neighbours + 1 : neighbours;
+	    neighbours = mirror[nx_lewo][ny_lewo] == true ? neighbours + 1 : neighbours;
+	    neighbours = mirror[nx_gora][ny_gora] == true ? neighbours + 1 : neighbours;
+	    neighbours = mirror[nx_dol][ny_dol] == true ? neighbours + 1 : neighbours;
 
-	    int state = 0;
+            neighbours = mirror[nx_prawo][ny_gora] == true ? neighbours + 1 : neighbours;
+            neighbours = mirror[nx_prawo][ny_dol] == true ? neighbours + 1 : neighbours;
+            neighbours = mirror[nx_lewo][ny_gora] == true ? neighbours + 1 : neighbours;
+	    neighbours = mirror[nx_lewo][ny_dol] == true ? neighbours + 1 : neighbours;
 
-	    state = neighbours < 2 ? 1 : neighbours == 2 || neighbours == 3 ? 2 : neighbours > 3 ? 3 : neighbours == 3 ? 4 : 0;
+	    int state = neighbours < 2 ? 1 : neighbours == 2 || neighbours == 3 ? 2 : neighbours > 3 ? 3 : neighbours == 3 ? 4 : 0;
 
 	    switch (state)
 	    {
 		case 1:
+		    grid[i][j] = false;
+		    break;
+		case 2:
+		    grid[i][j] = grid[i][j];
+		    break;
+		case 3:
+		    grid[i][j] = false;
+		    break;
+		case 4:
+		    grid[i][j] = true;
+		    break;
+		default:
+		    break;
 	    }
 	}
     }
     
 }
+
+int main()
+{
+    bool grid[SIZE][SIZE];
+    bool mirror[SIZE][SIZE];
+
+    initialize_grid(grid);
+    mirror_grid(grid, mirror);
+    simulate_grid(grid, mirror);
+
+    return 0;
+}