24.py

num1 = int(input("Enter No.1: "))
num2 = int(input("Enter No.2: "))
num3 = int(input("Enter No.3: "))
num4 = int(input("Enter No.4: "))

if(num1>num4):
    f1 = num1
else:
    f1 = num4

if(num2>num3):
    f2 = num2
else:
    f2 = num3

if(f1>f2):
    print(str(f1) + " is Greatest")
else:
    print(str(f2) + " is Greatest")