In what way did President Grant's approach to Reconstruction differ from that of President Johnson?

During the Reconstruction era, two events took place. Firstly, the United States history from the period 1865-1877 also included the Civil War. And the second, focused on the rebuilding of the US government and Southern United States revolution. These two presidents, Johnson and Grant. In each of these gentlemen’s view are quite contradictory which pertains to their respectful motives to reinforce and reinvigorate the society and state at their time. Johnson, President Lincoln’s successor was more in conflict with regards to Reconstruction Acts that while Grant on the other hand supported these acts that was delivered by the Radicals.