Could you point how to configure this Bootstrap buttons to be correctly distributed accordingly with this layout?

Hi Experts


Could you point how to configure this Bootstrap buttons to be correctly distributed accordingly with this layout?

<div class='row'>

      <div class="panel panel-primary">
      
          <div class='row'>
          
            <div class='col-md-8 pull-right'>
              <div class="btn-group" role="group">
                <button type="button" class="btn btn-primary" onclick="hotsite.vitrine.novo();">
                  <i class="fas fa-video" aria-hidden="true"></i> Minhas Fotos
                </button>
              </div>
            </div>
            
            <div class='col-md-6 pull-right'>
              <div class="btn-group" role="group">
                <button type="button" class="btn btn-primary" onclick="hotsite.vitrine.novo();">
                  <i class="fas fa-video" aria-hidden="true"></i> Todas as Fotos
                </button>
              </div>
            </div>
              
            <div class='col-md-4 pull-right'>
              <div class="btn-group" role="group">
                <button type="button" class="btn btn-primary" onclick="hotsite.vitrine.novo();">
                  <i class="fas fa-video" aria-hidden="true"></i> Enviar Foto
                </button>
              </div>
            </div>
              
          </div>  
       
    </div>
</div>

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Thanks in advance!