# Exercice 7
def bissextile(a):
    if (a%4 == 0 and a%100 !=0) or a%400 == 0:
        return True 
    else:
        return False

# Codes de test
print(bissextile(2024)) # True
print(bissextile(1700)) # False
print(bissextile(1600)) # True