1002

#include <iostream>
using namespace std;
int main()
{
char a[1000],b[1000],c[1000];
int n,Case = 1;
cin>>n;
while(n--)
{
cin>>a>>b;
int i = strlen(a);
int j = strlen(b);
int jinwei = 0;
int jj = --j;
int ii = --i;
if(i>j)
{
for(;j>-1;j--,i--)
{
c[i] =a[i] + b[j] + jinwei-'0';
if(c[i]>'9')
{
c[i] = c[i]-10;
jinwei = 1;
}
else
jinwei = 0;
}
for(i = ii-jj-1;i>-1;i--)
{
c[i] = a[i] +jinwei;
if(c[i]>'9')
{
c[i] = c[i]-10;
jinwei = 1;
}
else
jinwei = 0;
}
cout<<"Case "<<Case<<":"<<endl;
Case ++;
for(i = 0;i<strlen(a);i++)
cout<<a[i];
cout<<" + ";
for(i = 0;i<strlen(b);i++)
cout<<b[i];
cout<<" = ";
if(jinwei == 1)
cout<<"1";
for(i = 0;i<strlen(a);i++)
cout<<c[i];
cout<<endl;
if(n)
cout<<endl;
}
else
{
for(;i>-1;i--,j--)
{
c[j] =a[i] + b[j] + jinwei-'0';
if(c[j]>'9')
{
c[j] = c[j]-10;
jinwei = 1;
}
else
jinwei = 0;
}
for(j = jj-ii-1;j>-1;j--)
{
c[j] = b[j] +jinwei;
if(c[j]>'9')
{
c[j] = c[j]-10;
jinwei = 1;
}
else
jinwei = 0;
}
cout<<"Case "<<Case<<":"<<endl;
Case++;
for(i = 0;i<strlen(a);i++)
cout<<a[i];
cout<<" + ";
for(i = 0;i<strlen(b);i++)
cout<<b[i];
cout<<" = ";
if(jinwei == 1)
cout<<"1";
for(i = 0;i<strlen(b);i++)
cout<<c[i];
cout<<endl;
if(n)
cout<<endl;
}
}
return 0;
}