def add(x,y):
        return x+y;
def sub(x,y):
        return x-y;
def mul(x,y):
        return x*y;
def div(x,y):
        return x/y;
print("choice= 1,2,3,4")
print("add",add(2,3))
print("sub",sub(2,3))
print("mul",mul(2,3))
print("div",div(2,3))



    
