5_19237

def give_n3(n10: int) -> str:
    n3 = ''
    while n10 > 0:
        n3 = str(n10 % 3) + n3
        n10 //= 3
    return n3


min_r = 10**10
for n in range(1, 100):
    st = give_n3(n)
    if n % 3 == 0:
        st += st[-2:]
    else:
        st += give_n3(st.count('2')*2 + st.count('1'))
    r = int(st, 3)
    if r % 2 == 0 and 220 < r < min_r:
        min_r = r
print(min_r)  # output: 222