import sys

if __name__ == '__main__':
    werAv = 0
    sum = 0
    lineCount = 0

    with open('wer.txt','r+') as werOut, \
        open('werFinish.txt','w+') as werF:
        for line in werOut:
            num = float(line)
            sum += num
            lineCount += 1

        werAv = (sum / lineCount) * 100
        werF.write(f'{werAv:.5f}\n')