task5

number=input("Enter 3 numbers separated by delimiter (e.g. 4 ; -5.2 ; 0.0002):")
number=number.replace(",",".")
number=number.split(";")
n_1,n_2,n_3 = number
if float(n_1)<float(n_2):
    if float(n_2)<float(n_3):
        print("largest number is:",n_3)
    else:
        print("largest number is:",n_2)
else:
    print("largest number is:", n_1)