Coding to create a pyramid using numbers in c program

#include<stdio.h>
void main()
{
int n;
do
{
printf("How many lines you want to printn");
scanf("%d",&n);
}
while((n<1)||(n>9));
for(int i=1;i<=n;i++)
{

for(int j=1;j<=(n-i);j++)
printf(" ");

for(j=1;j<=i;j++)
printf("%d",j);

for(j=(i-1);j>=1;j--)
printf("%d",j);

printf("n");

}
}

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