def ordn(cup):
    out = cup.replace("()", "O")
    return out

def splt(expr):
    out = []
    expr = expr.split("+")
    for cup in expr:
        out.append(cup.replace(" ",""))
    return out

def calccups(cup1, cup2):
    result = ""
    if cup1.startswith("(") and cup2.startswith("("):
        if cup1[-1] == ")" and cup2[-1] == ")":
            if cup1[-2] == ")":
                print "{DEBUG} - 1 ?)?"
                result = cup1[:-1] + cup2 + ")"
            elif cup2[:2] == "((":
                if cup1[:2] == "((":
                    print "{DEBUG} - exception: no rule matched (addition)"
                    result = cup1 + cup2
                else:
                    print "{DEBUG} - 2 ((?"
                    result = "(" + cup1 + cup2[1:]
            elif cup1[:2] == "((":
                	print "{DEBUG} - 1 ((? ; 2 ??"
                	result = cup1[:-1] + cup2 + ")"
            elif cup2[:2] == "((" and cup2[-2:] == "))":
                print "{DEBUG} - 2 ((?))"
                result = "("+ cup1 + cup2[1:]
            else:
                print "{DEBUG} - exception: no rule matched (addition)"
                result = cup1+cup2
    elif cup1[-1] == ")" and cup2.startswith("O"):
        print "{DEBUG} - 1 ?) ; 2 ()?"
        result = cup1[:-1] + cup2 + ")"
    elif cup1[-1] == "O" and cup2.startswith("O"):
        print "{DEBUG} - 1 ?() ; 2 ()?"
        result = cup1 + cup2
    elif cup1[-1] == "O" and cup2[0] == "O":
        print "{DEBUG} - 1 ?() ; 2 ()?"
        result = cup1 + cup2
    elif cup1[-1] == "O" and cup2[0] == "(":
        	print "{DEBUG} - 1 ?() ; 2 (?"
        	result = "(" + cup1 + cup2[1:]
    return result

def uncupify(cup):
    return cup.replace("O", "()")
def solve(expr):
    cups = [ordn(c) for c in splt(expr)]
    buffer = []
    while True:
        if len(cups) == 1:
            return uncupify(cups[0])
        elif len(cups) > 2:
            buffer.append(calccups(cups[0], cups[1]))
            for cup in cups[2:]:
                buffer.append(cup)
            cups = buffer
            buffer = []
        else:
            result = calccups(cups[0],cups[1])
            return uncupify(result)


result = solve("((())()) + (()()) + ()()()")
print "\n"+result
# ((())())(()()()()())
# ((())()(()())()()())