Sitting in a station waiting room, Joisino is gazing at her train ticket.  The ticket is numbered with four digits A, B, C and D in this order, each between 0 and 9 (inclusive).  In the formula A op1 B op2 C op3 D = 7, replace each of the symbols op1, op2 and op3 with `+` or `-` so that the formula holds.  The given input guarantees that there is a solution. If there are multiple solutions, any of them will be accepted.
L = input()
N = [int(i) for i in list(L)]
def check(n):
  if n == -1:
    return '-'
  else:
    return '+'
for i in range(2):
  for j in range(2):
    for k in range(2):
      if N[0] + N[1] * pow(-1, i) + N[2] * pow(-1, j) + N[3] * pow(-1, k) == 7:
        ii = check(pow(-1, i))
        jj = check(pow(-1, j))
        kk = check(pow(-1, k))
        print(str(N[0]) + ii + str(N[1]) + jj + str(N[2]) + kk + str(N[3]) + "==7")
        exit(0)

import itertools
L = input()
s = ['+','-']
for a, b, c in itertools.product(s, s, s):
   f = L[0] + a + L[1] + b + L[2] + c + L[3] 
   if eval(f) == 7:
       print(f+'=7')
       exit(0)
