main(l,n,a,i,j,t,s){int w[10000];a=0;s=0;scanf("%d%d",&l,&n);for(i=0;i<n;i++){scanf("%d",&w[i]);s+=w[i];}for(i=0;i<n-1;i++)for(j=n-1;j>i;j--)if(w[j-1]>w[j]){t=w[j-1];w[j-1]=w[j];w[j]=t;}for(i=0;;i++)if(l<(a+=w[i]))break;printf("%d",l<s?i:n);}