被学校oj的高精度恶心到了，所以我觉得以后把它当板子

//??CBigInteger?????
/********** Write your code here! **********/
#include<bits/stdc++.h>
using namespace std;
class CBigInteger
{
public:vector<int> a;int si;CBigInteger(){si=1;}CBigInteger(vector<int> t,int s){si=s;a=t;}CBigInteger(int x){a.clear();si=x;}void sets(int x){si=x;}CBigInteger add(CBigInteger x,CBigInteger y,int s){int n=max(x.a.size(),y.a.size());vector<int> p(n);for(int i=0; i<n; i++){if(i<x.a.size()) p[i]+=x.a[i];if(i<y.a.size()) p[i]+=y.a[i];}for(int i=0; i<n-1; i++){p[i+1]+=p[i]/10;p[i]%=10;}if(p.size()==0) return CBigInteger(p,s);while(p[p.size()-1]>9){p.push_back(p[p.size()-1]/10);p[p.size()-2]%=10;}return CBigInteger(p,s);}CBigInteger minus(CBigInteger x,CBigInteger y,int s){int n=max(x.a.size(),y.a.size());vector<int> p(n);for(int i=0; i<n; i++){if(i<x.a.size()) p[i]+=x.a[i];if(i<y.a.size()) p[i]-=y.a[i];}for(int i=0; i<n-1; i++){if(p[i]<0){p[i+1]--;p[i]+=10;}}if(n==0) return CBigInteger(p,s);if(p[n-1]<0){return minus(y,x,-s);
//			vector<int> q(n);
//			q[n-1]=-p[n-1];
//			p.pop_back();
//			return minus(CBigInteger(q,1),CBigInteger(p,1),-s);}return CBigInteger(p,s);}CBigInteger operator + (CBigInteger t){if(si==1){if(t.si==1) return add(*this,t,1);else return minus(*this,t,1);}else{if(t.si==-1) return add(*this,t,-1);else return minus(*this,t,-1);}}CBigInteger operator - (CBigInteger t){if(si==1){if(t.si==1) return minus(*this,t,1);else return add(*this,t,1);}else{if(t.si==-1) return minus(*this,t,-1);else return add(*this,t,-1);}}CBigInteger mul(CBigInteger x,int y,int num){vector<int> p;for(int i=1; i<=num; i++) p.push_back(0);for(int i=0; i<x.a.size(); i++){p.push_back(x.a[i]*y);}return CBigInteger(p,1);}CBigInteger operator * (CBigInteger t){CBigInteger p(si*t.si);for(int i=0; i<t.a.size(); i++){p=p+mul(*this,t.a[i],i);}p.si=si*t.si;return p;}friend istream& operator >> (istream &in,CBigInteger &c);friend ostream& operator << (ostream &out,const CBigInteger &c);
};
istream& operator >> (istream &in,CBigInteger &c)
{string s;cin>>s;int now=0;if(s[now]=='-'){c.sets(-1);now++;}else c.sets(1);c.a.clear();while(now<s.size()){c.a.push_back(s[now]-'0');now++;}reverse(c.a.begin(),c.a.end());while((!c.a.empty())&&c.a.back()==0) c.a.pop_back();return in;
}
ostream& operator << (ostream &out,const CBigInteger &c)
{bool bz=0;vector<int> p=c.a;while((!p.empty())&&p.back()==0) p.pop_back();if(p.size()==0){cout<<0;return out;}if(c.si==-1) bz=1;if(bz) cout<<"(-";for(int i=p.size()-1; i>=0; i--) cout<<p[i];if(bz) cout<<")";return out;
}/*******************************************/
int main()
{int t;char op;CBigInteger bigNum1;CBigInteger bigNum2;cin >> t;while(t--){cin >> bigNum1 >> op >> bigNum2;cout << bigNum1 << " " << op << " " << bigNum2 << " = ";if(op == '+')cout << bigNum1 + bigNum2 << endl;else if(op == '-')cout << bigNum1 - bigNum2 << endl;else if(op == '*')cout << bigNum1 * bigNum2 << endl;}return 0;
}