void Expression()
{
if(IsAddop(Look))
EmitLn("xor %eax, %eax");
else
Term();
while (strchr("+-", Look)) {
EmitLn("pushl %eax");
switch(Look)
{
case '+':
Add();
break;
case '-':
Substract();
break;
default:
Expected("Addop");
}
}
}
vec3& vec3::operator-=(const vec3& other)
{
return Substract(other);
}
Vector4 Vector4::operator - (const Vector4 &other)
{
return Substract (other);
}
vec2& vec2::operator-=(const vec2& other)
{
return Substract(other);
}
int main(){
int t,n;
int i;
int j;
int nLen1;
int nLen2;
int nTimes;
int nTmp;
int bStartOutput;
scanf("%d",&n);
for(t=0;t<n;t++){
bStartOutput=0;
scanf("%s",szLine1);
scanf("%s",szLine2);
memset(an1,0,sizeof(an1));
memset(an2,0,sizeof(an2));
memset(aResult,0,sizeof(aResult));
nLen1=strlen(szLine1);
nLen2=strlen(szLine2);
if(nLen1<nLen2){
printf("0\n");
continue;
}
j=0;
for(i=nLen1-1;i>=0;i--)
an1[j++]=szLine1[i]-'0';
j=0;
for(i=nLen2-1;i>=0;i--)
an2[j++]=szLine2[i]-'0';
nTimes=nLen1-nLen2;
for(i=nLen1-1;i>=0;i--){
if(i>=nTimes)
an2[i]=an2[i-nTimes];
else
an2[i]=0;
}
nLen2=nLen1;
for(j=0;j<=nTimes;j++){
while((nTmp=Substract(an1,an2+j,nLen1,nLen2-j))>=0){
nLen1=nTmp;
aResult[nTimes-j]++;
}
}
for(i=0;i<MAX_LEN;i++){
if(aResult[i]>=10){
aResult[i+1]=aResult[i]/10;
aResult[i]=aResult[i]%10;
}
}
for(i=MAX_LEN;i>=0;i--)
if(bStartOutput)
printf("%d",aResult[i]);
else if(aResult[i]){
printf("%d",aResult[i]);
bStartOutput=1;
}
if(!bStartOutput)
printf("0\n");
printf("\n");
}
return 0;
}
