#!/usr/bin/env python
# -*- coding: utf-8 -*-
# 括弧を理解する電卓（標準入力を使う）

import sys
import tpg

class Calc(tpg.Parser):
    r"""

	separator space	'\s+';

	token real	'\d+\.\d*|\.?\d+'	float

        START/e -> EXPR/e ;

        EXPR/e ->
                TERM/e
		( '\+' TERM/t    $ e += t
		| '\-' TERM/t    $ e -= t
		)*
                ;

        TERM/t ->
                FACT/t
		( '\*' FACT/f    $ t *= f
		| '\/' FACT/f    $ t /= f
		)*
                ;

        FACT/f ->
                    real/f
                |   '\(' EXPR/f '\)'
                ;

    """

calc = Calc()

for s in sys.stdin.readlines():
    expr = s.strip()
    if not expr:
        break
    try:
        result = calc(expr)
        print expr, "=>", result
    except Exception, e:
        print expr, ":", e