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.
a,b,c,d=input()
lst_1=[]
lst_2= ["+","-"]
for i in lst_2:
  for j in lst_2:
    for k in lst_2:
      lst_1.append(a+i+b+j+c+k+d)
for l in lst_1:
  if eval(l)==7:
    print(l)
s=input()
n=4-1
for i in range(1<<n):
    lst=list(s)
    for j in range(n):
        if ((i>>j)&1):
            lst.insert(2*j+1,"+")
            # print(lst)
        else:
            lst.insert(2*j+1,"-")
    if(eval("".join(lst))==7):
        print(("".join(lst))+"=7")
        break