a = input("a=") # enter for example, 123 b = input("b=") # enter for example, 3.14 c = input("c=") # enter for example, -100 total = a + b + c # for example, 1233.14-100 total = float(a) + float(b) + float(c) # for example, 26.14 total = int(a) + float(b) + int(c) # this works, too