t=int(input())
if t<5:
    print(10)
elif t>=5:
    if t % 2 != 0 and t % 5 != 0:
        print(10)
    elif t % 10 == 0:
        print(1)
    elif t % 5 == 0:
        print(2)
    elif t % 2 == 0:
        x = (t % 2)
        if x % 2 != 0 and x%5!=0:
            print(10)
        elif x % 2 == 0:
            print(10)
        elif x % 5 == 0:
            print(2)