diff --git a/app/Commands/Pascal.php b/app/Commands/Pascal.php
index 175d451..92232f7 100644
--- a/app/Commands/Pascal.php
+++ b/app/Commands/Pascal.php
@@ -12,7 +12,7 @@ class Pascal extends Command
      *
      * @var string
      */
-    protected $signature = 'pascal';
+    protected $signature = 'pascal {filas}';
 
     /**
      * The description of the command.
@@ -30,41 +30,41 @@ class Pascal extends Command
     {
         function generarPiramidePascal($filas) {
             $triangulo = array();
-            
+
             for ($i = 0; $i < $filas; $i++) {
               $triangulo[$i] = array();
               $triangulo[$i][0] = 1;
-              
+
               for ($gama = 1; $gama < $i; $gama++) {
                 $triangulo[$i][$gama] = $triangulo[$i-1][$gama-1] + $triangulo[$i-1][$gama];
               }
-              
+
               $triangulo[$i][$i] = 1;
             }
-            
+
             return $triangulo;
           }
-          
+
           function mostrarPiramidePascal($triangulo) {
             $filas = count($triangulo);
-            
+
             for ($i = 0; $i < $filas; $i++) {
               $espacios = str_repeat(" ", $filas - $i);
-              
+
               echo $espacios;
-              
+
               for ($gama = 0; $gama <= $i; $gama++) {
                 echo $triangulo[$i][$gama] . " ";
               }
-              
+
               echo "\n";
             }
           }
-          
-          $numeroFilas = 10;
+
+          $numeroFilas = $this->argument('filas');
           $piramide = generarPiramidePascal($numeroFilas);
           mostrarPiramidePascal($piramide);
-          
+
     }
 
     /**