//exp.cpp
#include<cstdio>
#include<cstring>
#include<stack>
#include<cassert>
const int MAXN = 505;

using namespace std;

struct Exp {
	int coef[2];
};

Exp makeX()
{
	Exp ret;
	ret.coef[0] = 0;
	ret.coef[1] = 1;
	return ret;
}

Exp makeConst(int val)
{
	Exp ret;
	ret.coef[0] = val;
	ret.coef[1] = 0;
	return ret;
}

Exp add(Exp a, Exp b)
{
	Exp ret;
	ret.coef[0] = a.coef[0] + b.coef[0];
	ret.coef[1] = a.coef[1] + b.coef[1];
	return ret;
}

Exp mul(Exp a, Exp b)
{
	Exp ret;
	assert(a.coef[1] == 0 || b.coef[1] == 0);
	ret.coef[0] = a.coef[0] * b.coef[0];
	ret.coef[1] = a.coef[0] * b.coef[1] + a.coef[1] * b.coef[0];
	return ret;
}

Exp calc(const char *s, const int *pos, int lb, int ub)
{
	int idx = lb;
	Exp ret;
	std::stack<Exp> stkVal;
	std::stack<char> stkOp;
	
	ret.coef[0] = ret.coef[1] = 0;
	
	while (idx <= ub)
	{
		if (s[idx] == '(')
		{
			Exp val1 = calc(s, pos, idx + 1, pos[idx] - 1), val2;
			if (stkOp.size() && stkOp.top() == '*')
			{
				val2 = stkVal.top(); stkVal.pop();
				stkVal.push(mul(val1, val2));
				stkOp.pop();
			}
			else
			{
				stkVal.push(val1);
			}
			idx = pos[idx] + 1;
		}
		else if (('0' <= s[idx] && s[idx] <= '9') || s[idx] == 'x')
		{
			Exp val1, val2;
			if (s[idx] == 'x')
			{
				val1 = makeX();
			}
			else
			{
				val1 = makeConst(s[idx] - '0');
			}
			if (stkOp.size() && stkOp.top() == '*')
			{
				val2 = stkVal.top(); stkVal.pop();
				stkVal.push(mul(val1, val2));
				stkOp.pop();
			}
			else
			{
				stkVal.push(val1);
			}
			++idx;
		}
		else
		{
			stkOp.push(s[idx]);
			++idx;
		}
	}
	while (stkVal.size())
	{
		ret = add(ret, stkVal.top());
		stkVal.pop();
	}
	return ret;
}



int init(char *exp, int *pos)
{
	int idx = 0;
	stack<int> stk;
	for (int i = 0; exp[i] != '\n' && exp[i]; ++i)
	{
		if (exp[i] != ' ')
		{
			exp[idx] = exp[i];
			if (exp[idx] == '(')
			{
				stk.push(idx);
			}
			else if (exp[idx] == ')')
			{
				pos[stk.top()] = idx;
				stk.pop();
			}
			++idx;
		}
	}
	exp[idx] = '\0';
	
	return idx;
}

int main()
{
	char exp[MAXN + 5];
	int pos[MAXN], n;
	Exp l, r;
	fgets(exp, MAXN, stdin);
	n = init(exp, pos);
	l = calc(exp, pos, 0, n - 1);
	fgets(exp, 775, stdin);
	n = init(exp, pos);
	r = calc(exp, pos, 0, n - 1);
	printf("%d\n", (r.coef[0] - l.coef[0]) / (l.coef[1] - r.coef[1]));
	return 0;
}