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.
n = input()
a,b,c,d = map(int,list(n))
op =[1,1,1]
v = ["?","+","-"]
ans = 0
for i in range(-1,2,2):
    for j in range(-1,2,2):
        for k in range(-1,2,2):
            op[0] = i
            op[1] = j
            op[2] = k
            if a+b*op[0]+c*op[1]+d*op[2] == 7:
                print("{}{}{}{}{}{}{}==7".format(a,v[op[0]],b,v[op[1]],c,v[op[2]],d))
                break

n = input()
a,b,c,d = map(int,list(n))
op =[1,1,1]
v = ["?","+","-"]
ans = 0
for i in range(-1,2,2):
    for j in range(-1,2,2):
        for k in range(-1,2,2):
            op[0] = i
            op[1] = j
            op[2] = k
            if a+b*op[0]+c*op[1]+d*op[2] == 7:
                print("{}{}{}{}{}{}{}=7".format(a,v[op[0]],b,v[op[1]],c,v[op[2]],d))
                break
        else:
            continue
        break
    else:continue
    break
