N=list(input())
if "3" in N:
    mk=N.index("3")
    N[mk]="2"
    for i in range(mk+1,len(N)):
        N[i]="9"
sm=0
for n in N:
    sm+=int(n)
if sm%3==0:
    N[-1]="8"
print("".join(N))