#include <bits/stdc++.h>
using namespace std;
int n;
int a, b;
string op, pre_op;
int main()
{
scanf("%d", &n);
while (n--)
{
cin >> op;
string ans;
if (op == "a")
{
cin >> a >> b;
ans = to_string(a) + "+" + to_string(b) + "=" + to_string(a + b);
}
else if (op == "b")
{
cin >> a >> b;
ans = to_string(a) + "-" + to_string(b) + "=" + to_string(a - b);
}
else if (op == "c")
{
cin >> a >> b;
ans = to_string(a) + "*" + to_string(b) + "=" + to_string(a * b);
}
else
{
a = atoi(op.c_str());
cin >> b;
if (pre_op == "a")
ans = to_string(a) + "+" + to_string(b) + "=" + to_string(a + b);
else if (pre_op == "b")
ans = to_string(a) + "-" + to_string(b) + "=" + to_string(a - b);
else
ans = to_string(a) + "*" + to_string(b) + "=" + to_string(a * b);
}
cout << ans << endl
<< ans.size() << endl;
pre_op = op;
}
return 0;
}
dalao们帮我看看为什么有2个点WA了。