#try to avoid input function
a = int(input("Enter a Number :"))
b = int(input("Enter a Number :"))
c = int(input("Enter a Number :"))
if a <= b and a <= c:
print("The smallest number is :",a)
elif b <= a and b <= c:
print("The smallest number is :",b)
else:
print("The smallest number is :",c)
Click the run button. Try to avoid input() function.