poj1504

#include

using namespace std;

int main(){

int n,i,flag;

cin>>n;

while(n--){

string a,b;

cin>>a>>b;

int c[200]={0},d[200]={0},lc,ld;

lc=a.size();

ld=b.size();

for(i=0;i

for(i=0;i

if(lc<=ld){

for(i=0;i

d[i]+=c[i];

}

for(i=0;i

if(d[i]>9){

d[i+1]+=d[i]/10;

d[i]%=10;

}

else continue;

}

if(d[ld]>0) ld++;

flag=0;

for(i=0;i

if(flag) cout<<d[i];

else if(d[i]==0&&!flag) continue;

else if(d[i]!=0&&!flag){

cout<<d[i];

flag=1;

}

}

cout<<endl;

}

else

{

for(i=0;i

for(i=0;i

if(c[i]>9){

c[i+1]+=c[i]/10;

c[i]%=10;

}

else continue;

}

if(c[lc]>0) lc++;

flag=0;

for(i=0;i

if(flag) cout<<c[i];

else if(c[i]==0&&!flag) continue;

else if(c[i]!=0&&!flag){

cout<<c[i];

flag=1;

}

}

cout<<endl;

}

}

return 0;

}