public class pattern{
public static void main(String []args){
int lines=10;
int i,j;
int count;
for(i=1;i<=lines;i++){// this loop is used to print lines
count=0;
for(j=1;j<lines;j++){// this loop is used to print numbers in a line
if(count<i-1){
if(!(j<lines-i+1)){
System.out.print(j);
count++;
}
}
}
System.out.print("0");
count=0;
for(--j;j>=1;j--){// this loop is used to print j and increment count
if(count<i-1){
System.out.print(j);
count++;
}
}
System.out.println("");
}
}
}
0
909
89098
7890987
678909876
56789098765
4567890987654
345678909876543
23456789098765432
1234567890987654321