a = ("ADD")
s = ("SUBTRACT")
m = ("MULTI")
def function (c1, c2, *c3):
if a in c3 :
print(c1 + c2)
if s in c3:
print(c1 - c2)
if m in c3:
print(c1 * c2)
else:
print("wrong value")
I want to make it accept capital and small and mix characters
function(86, 44, "Add")