     func createSymbolRow() -> [String] {
         return ["-", "_", "@"]
     }
+
+    func updateSelectionDisplay() {
+        selectionDisplay.text = keyboardRows[selectedRowIndex][selectedCharIndex]
+    }
 }

        if(selectedCharIndex >= keyboardRows[selectedRowIndex].count) {
            selectedCharIndex = keyboardRows[selectedRowIndex].count - 1
        }
    }
    
    func shiftUp() {

        if(selectedCharIndex < 0) {
            selectedCharIndex = 0
        }
        updateSelectionDisplay()
    }
    
    func shiftRight() {
