def average( data ):
    # return the average of data
    s = 0
    for e in data:
        s += e
    return s / len(data)

def sd( data ):
    # return the standard deviation of data
    avg = average(data)
    sum2 = 0
    for e in data:
        sum2 += (e - avg)**2
    return (sum2/len(data))**0.5

#-----------------------------------
def z_score(x):
    # return a list of z_scores of x



#-----------------------------------
exec(input())  # DON'T remove this line