#include <stdio.h>
#include <stdlib.h>
#include <limits.h>

int main() {
    int data, max = 0, min = INT_MAX, sum = 0, count = 0;
    FILE *fpin, *fpout;

    if((fpin = fopen("input2.txt", "r")) == NULL){
        fprintf(stderr, "Failed to open: input2.txt\n");
        exit(1);
    }
    while(fscanf(fpin, "%d", &data) == 1){
        if(data > max) max = data;
        if(data < min) min = data;
        sum += data;
        count++;
    }
    fclose(fpin);

    if((fpout = fopen("result2.txt", "w")) == NULL){
        fprintf(stderr, "Failed to open: result2.txt\n");
        exit(2);
    }
    if(count > 0)
        fprintf(fpout, "max = %d, min = %d, ave = %f, count = %d\n",
                max, min, (double)sum / count, count);
    fclose(fpout);
    return 0;
}