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.
from operator import index
import os
from re import M
import sys
from io import BytesIO, IOBase


# region fastio

BUFSIZE: int = 8192


class FastIO(IOBase):
    newlines = 0

    def __init__(self, file):
        self._fd = file.fileno()
        self.buffer = BytesIO()
        self.writable = "x" in file.mode or "r" not in file.mode
        self.write = self.buffer.write if self.writable else None

    def read(self):
        while True:
            b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
            if not b:
                break
            ptr = self.buffer.tell()
            self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
        self.newlines = 0
        return self.buffer.read()

    def readline(self):
        while self.newlines == 0:
            b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
            self.newlines = b.count(b"\n") + (not b)
            ptr = self.buffer.tell()
            self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
        self.newlines -= 1
        return self.buffer.readline()

    def flush(self):
        if self.writable:
            os.write(self._fd, self.buffer.getvalue())
            self.buffer.truncate(0), self.buffer.seek(0)


class IOWrapper(IOBase):
    def __init__(self, file):
        self.buffer = FastIO(file)
        self.flush = self.buffer.flush
        self.writable = self.buffer.writable
        self.write = lambda s: self.buffer.write(s.encode("ascii"))
        self.read = lambda: self.buffer.read().decode("ascii")
        self.readline = lambda: self.buffer.readline().decode("ascii")


def print(*args, **kwargs):
    """Prints the values to a stream, or to sys.stdout by default."""
    sep, file = kwargs.pop("sep", " "), kwargs.pop("file", sys.stdout)
    at_start = True
    for x in args:
        if not at_start:
            file.write(sep)
        file.write(str(x))
        at_start = False
    file.write(kwargs.pop("end", "\n"))
    if kwargs.pop("flush", False):
        file.flush()


sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip("\r\n")

def checkDIV(string):

    lth3 = len(string) %3 

    string = "0"*(3-lth3)+string

    lth = len(string) 
    
    ans = int(string[:3])

    for i in range(3, lth,3):
        it = string[i:i+3]
        ans -= int(it)
    return ans % 7 == 0

def __main__(debug = False):

    permuntaition = []
    for i in [1,6,8,9]:
        for j in [1,6,8,9]:
            if (i!=j):
                for u in [1,6,8,9]:
                    if (i!=u and j!=u):
                        for z in [1,6,8,9]:
                            if (i!=z and j != z and u != z):
                                permuntaition.append(str(i)+str(j)+str(u)+str(z))
    
    oneF,sixF,eigF, ninF = False,False,False,False
    zero = ""
    ans = ""
    for i in input():
        if (i == "0"):
            zero+=i
        elif (not oneF and i == "1"):
            oneF = True
        elif (not sixF and i == "6"):
            sixF = True
        elif (not eigF and i == "8"):
            eigF =True
        elif (not ninF and i == "9"):
            ninF = True
        else:
            ans+=i
    
    for i in permuntaition:
        answer = ans + i + zero
        if (checkDIV(answer)):
            print(answer)
            return 0
    
    print("0")
    
    return 0

if (__name__ == "__main__"):

    exit(__main__())