func opPriority(_ op: Character) -> Int {
    return (op == "*") || (op == "/") ? 2 : (op == "+") || (op == "-") ? 1 : 0
}

func compareToPriority(_ op1: Character, _ op2: Character) -> Bool {
    return opPriority(op1) >= opPriority(op2)
}

if let input = readLine() {
    var result: String = ""
    var op: [Character] = []
    
    for c in input {
        if "A" <= c && c <= "Z" {
            result.append(c)
        }
        else {
            if c == "(" {
                op.append(c)
            }
            else if c == ")" {
                while !op.isEmpty && op.last != "(" {
                    if let top = op.popLast() {
                        result.append(top)
                    }
                }
                
                if !op.isEmpty {
                    _ = op.popLast()
                }
            }
            else {
                while !op.isEmpty && compareToPriority(op.last!, c) {
                    if let top = op.popLast() {
                        result.append(top)
                    }
                }
                
                op.append(c)
            }
        }
    }
    
    while !op.isEmpty {
        if let top = op.popLast() {
            result.append(top)
        }
    }
    
    print(result)
}