import sys
from itertools import product

s = sys.stdin.readline().rstrip()


def main():
    for ops in product("+-", repeat=3):
        res = s[0]
        for i in range(3):
            res += ops[i] + s[i + 1]
        if eval(res) == 7:
            print(res + "=7")
            return


if __name__ == "__main__":
    main()

import sys
from itertools import product

s = sys.stdin.readline().rstrip()


def main():
    for ops in product("+-", repeat=3):
        res = s[0]
        for i in range(3):
            res += ops[i] + s[i + 1]
        if eval(res) == 7:
            print(res + "=7")
            return


if __name__ == "__main__":
    main()
