my code.
#include <iostream>
using namespace std;
int main(){
int T,A,f,i,j,k,l;
cin>>T;
cout<<"\n";
for(i=1;i<=T;i++){
cin>>A>>f;
if(A>9){break;}
if(A>0&&A<=9){
cout<<"\n";
for(j=1;j<=f;j++){
for(k=1;k<=A;k++){
for(l=1;l<=k;l++){
cout<<k;
}
cout<<"\n";
}
for(k=A-1;k>=1;k--){
for(l ...