Answer Posted / aftab rai

#include<stdio.h>
#include<conio.h>
main()
{
int i,j,n;
printf("enter numbers of lines");
scanf("%d",&n);
for(i=0;i<n;i++)
{
for(j=0;j<=i;j++)
{printf("%d",i+1+j);}
printf("\n");
}
getch();
}

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