import sys
sys.set_int_max_str_digits(0)
N = input()
total = 0
ans = []
flag = True

for n in N:
    if flag:
        if n == '3':
            flag = False
            n = '2'
    else:
        n = '9'
    
    ans.append(n)
    total += int(n)

if total%3 == 0:
    M = len(ans)
    for i in range(M - 1, -1, -1):
        if ans[i] == '0':
            ans[i] = '9'
        else:
            if ans[i] == '4':
                ans[i] = '2'
            else:
                ans[i] = str(int(ans[i]) - 1)
            break

print(''.join(ans))