You have number *a*, whose decimal representation quite luckily contains digits 1, 6, 8, 9. Rearrange the digits in its decimal representation so that the resulting number will be divisible by 7.

Number *a* doesn't contain any leading zeroes and contains digits 1, 6, 8, 9 (it also can contain another digits). The resulting number also mustn't contain any leading zeroes.
The first line contains positive integer *a* in the decimal record. It is guaranteed that the record of number *a* contains digits: 1, 6, 8, 9. Number *a* doesn't contain any leading zeroes. The decimal representation of number *a* contains at least 4 and at most 10<sup class="upper-index">6</sup> characters.
n= input()
l=""
k=""
for i in n:
    if i not in "16890" or i in k:
        l=l+i
    else:
        k=k+i
m=[1869, 1968, 1689, 6891, 1698, 1986, 1896]

if len(l)>0:
    print(l+str(m[6-(6*int(l)%7)%7])+(len(n)-len(l)-4)*" ")
else:
    print("1869"+(len(n)-4)*"0")
