Помогите пожалуйста,информатика!

Код на Python

====== Task 1 ========

year = int(input("Input symbol: "))

if year % 4 == 0:

print(" year is leap")

else:

print(" year is not leap")

====== Task 2 ========

number = int(input("Input number: "))

if number gt;= 0:

print(number ** 2)

else:

print(number ** 4)

====== Task 3 ========

nbr1 = int(input("Input 1 number: "))

nbr2 = int(input("Input 2 number: "))

nbr3 = int(input("Input 3 number: "))

print(min(nbr1, nbr2, nbr3))