Christoph is making chili. He wishes to include 3 types of beans, and his choices are kidney, pinto, red, black, garbanzo, fava, and navy. He wishes to include 4 types of peppers, and his choices are red bell, green bell, orange bell, yellow bell, jalapeno, habanero, poblano, and datil. Based on these two choices, how many different varieties of chili can Christoph make?