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 = list(input())
sign = '+-'
for i in range(2):
    for j in range(2):
        for k in range(2):
            if eval(a+sign[i]+b+sign[j]+c+sign[k]+d) == 7:
                print(a+sign[i]+b+sign[j]+c+sign[k]+d + '==7')
a,b,c,d = list(input())
sign = '+-'
for i in range(2):
    for j in range(2):
        for k in range(2):
            if eval(a+sign[i]+b+sign[j]+c+sign[k]+d) == 7:
                print(str(a+sign[i]+b+sign[j]+c+sign[k]+d) + '=7')
                exit()
