Magic



#include<iostre am.h>
#include<conio. h>
void main()
{clrscr();
int sum=0;char x;
cout<<"Think of a no: from 1-50\n";
cout<<" 01 02 03\n"
<<"01 03 05 07 09 02 03 06 07 10 04 05 06 07 12\n"
<<"11 13 15 17 19 11 14 15 18 19 13 14 15 20...