> #include "stdio.h"
> main()
> { int N,i,sum,a[30],j,k;
>   float M; 
> do
> {scanf("%d",&N);
>    for(i=0,sum=0;i<N;i++)
> 	 {
> 	  scanf("%d",&a[i]);
>       sum=sum+a[i];
> 	 }
> 	  for(j=0,k=0,M=0;j<N;j++)
> 	  {
> 		M=M+a[j];
> 		if(M==(sum/2.0))
> 		{
> 		  printf("Sam stops at position %d and Ella stops at position %d.\n",j+1,j+2);
> 		  break;
> 		}
>         else
> 		 k++;
> 	    if(k==N-2)
> 	     printf("No equal partitioning.\n");
> 	  }
> } 
> while(N!=0);
> }