// Pantea Aria

// read numbers until user enters -1, then print out their average

// what do we need to calculate?
// 10, 30, -5, 90, 34, -1
// sum = (10+30+-5+90+34)
    // I let you camculate average yourself  = sum/number of inputs



#include <stdio.h>

int main(void) {

    
    

    
    return 0;
}