666

#include <iostream>
#include <math.h>

using namespace std;

class newInt
{
public:
int x;
newInt(int x=0):x(x){}
friend istream &operator>>(istream &is,newInt &n)
{
is>>n.x;
return is;
}
friend ostream &operator<<(ostream &out,const newInt &n)
{
out<<n.x;
return out;
}
};

int length(newInt s)
{
int counter=0;
while(s.x)
{

s.x/=10;
counter++;
}
cout<<counter<<endl;
return counter;
}

newInt operator+(newInt &a,newInt &b)
{
int minn=min(length(a),length(b));
int maxx=max(length(a),length(b));
int mm=maxx-minn;
int sum=0;
int aa=a.x;
int bb=b.x;
int tmp=minn;
while(minn)
{
sum+=(aa%10+bb%10)%10*pow(10,tmp-minn);
aa/=10;
bb/=10;
minn--;
}
if(aa!=0)
{
sum+=aa*pow(10,tmp);
}
else
{
sum+=bb*pow(10,mm);
}
return newInt(sum);
}

int main()
{
int cases;
newInt a, b, c;
cin>>cases;
for (int i = 0; i < cases; i++)
{
cin>>a>>b;
c = a + b;
cout<<a<<" + "<<b<<" = "<<c<<endl;
}
return 0;
}