To print pattern of numbers

Lets learn more about printing of pattern of numbers. In this page I have written the program to print the pattern of numbers.
The pattern would be like this:
       1
     123
    12345
  1234567
To get more idea have a look for the source code and the output below:

The source code of the above output is:

	#include<stdio.h>
	#include<conio.h>
	int main()
	{
	int i,j,k,l=3;
	for(i=1;i<=4;i++)
	{
	for(j=1;j<=(4-i);j++)
	{
	printf(" ");
	}
	for(k=1;k<=i;k++)
	{
	printf("%d",k);
	}
	for(k=1;k<i;k++)
	{
	printf("%d",l+(k-2));
	}
	l++;
	printf("\n");
	}
	getch();
	}

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