INI OUTPUTNYA :
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#include<iostream.h>
#include<conio.h>
main()
{
int a=2,b=20,n;
for(a=a;a<=b;a+=2)
{
cout<<a;
if(a<b)
{
cout<<" + ";
}
}
cout<<" = ";
n=b/2;
n=n*(n+1);
cout<<n;
getch();
}
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