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import re, sys
header = sys.stdin.readline()
days = 0
mean_total = 0
for line in sys.stdin:
    fields = re.match('([^,]*),([^,]*),([^,]*),([^,]*),([^,]*),([^,]*),([^,]*),([^,]*)\n', line)
    if fields:
        groups = fields.groups()
        data = {'date':groups[0],
                'prcp':groups[1],
                'snow':groups[2],
                'snwd':groups[3],
                'tmax':groups[4],
                'tmin':groups[5],
                'mean':groups[6],
                'extra':groups[7]}
        #print(data)
        #break
        days += 1
        mean_total += float(data['mean'])
    # but note that fields = line.split(',') is simpler
print('Total # of years, days = ' + str(days/365.0) + ', ' + str(days))
print('Average mean temp = ' + str(mean_total / days))
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