#include <stdio.h>
#include <math.h>
#define N 100
main(){
	int f,i,n;
	int m[N+1],mm;
	double a[N+1],aa;
	double s,mean,max;

	/* input */
	n=0;
	do{
		n=n+1;
		printf("Input a Number (minus ... END)?  a[%d]=  ", n);
		scanf("%lf", &a[n]);
		m[n]=n;
	}while(a[n]>=0);

	if(n==1){
		printf("Finished ... No Data \n");
		
	}else{

		/* KeISaN */
		printf("%d term(s)\n", n-1);

		/* mean, max */
		s=0.0;
		max=a[1];
		for(i=1; i<n; i=i+1){
			s=s+a[i];
			if(a[i]>max){ max=a[i]; };
		};
		mean=s/(n-1);
		printf("mean=%lf\n", mean);
		printf("max=%lf\n", max);

		/* sort */
		if(n>2){
			do{
				f=0;
				for(i=2; i<n; i=i+1){
					if(a[i-1]>a[i]){
						aa=a[i];
						a[i]=a[i-1];
						a[i-1]=aa;
						mm=m[i];
						m[i]=m[i-1];
						m[i-1]=mm;
						f=1;
					};
				};
			}while(f!=0);
		};
		for(i=1; i<n; i=i+1){
			printf("a[%d]=%lf\n", m[i], a[i]);
		};
	};
}