diff --git a/src/main/c/sudoku.c b/src/main/c/sudoku.c
index 65e0e50..77122dc 100644
--- a/src/main/c/sudoku.c
+++ b/src/main/c/sudoku.c
@@ -25,6 +25,7 @@ void initializeGrid(int grid[SIZE][SIZE]);
 void generateSudoku(int grid[SIZE][SIZE], int difficulty, int level);
 void turnFunction(int grid[SIZE][SIZE]);
 void tipFunction(int grid[SIZE][SIZE]);
+void inputFunction(int grid[SIZE][SIZE]);
 
 
 int availableLevels[3][3][SIZE][SIZE] = {
@@ -315,6 +316,7 @@ void generateSudoku(int grid[SIZE][SIZE], int difficulty, int level) {
 void turnFunction(int grid[SIZE][SIZE]) {
         printf("\nTurn function - Choose an action:\n");
         printf("1. Tip function\n");
+        printf("2. Input function\n");
 
          int action;
 
@@ -336,7 +338,7 @@ void turnFunction(int grid[SIZE][SIZE]) {
                 tipFunction(grid);
                 break;
             case 2:
-                printf("Case 2.\n");
+                inputFunction(grid);
                 break;
             case 3:
                 printf("Case 3.\n");
@@ -444,7 +446,11 @@ void tipFunction(int grid[SIZE][SIZE]) {
     }
 }
 
+void inputFunction(int grid[SIZE][SIZE]) {
+    printf("\nInput function - Choose an action:\n");
 
+    
+}