#!/usr/bin/env python3

import numpy as np
import re
import sys

# Print the mean and stddev of the floats in the list of data
def printstats(data):
    mean = np.mean(data)
    stddev = np.std(data)
    print(f",{mean:.3f},{stddev:.3f}", end='')

if __name__ == "__main__":
    times = {}
    for line in sys.stdin.readlines():
        if matches := \
            re.match(r'(\d+) (\d+) \d+ (\d+\.?\d*) (\d+\.?\d*) (\d+\.?\d*)',
                line):
            groups = matches.groups()
            label, send_time, fetch_time, tot_time = \
                (int(groups[0]), int(groups[1])), float(groups[2]), \
                float(groups[3]), float(groups[4])
            if label not in times:
                times[label] = [ [], [], [] ]
            times[label][0].append(send_time)
            times[label][1].append(fetch_time)
            times[label][2].append(tot_time)

    print("users,batches,send_mean,send_stddev,fetch_mean,fetch_stddev,tot_mean,tot_stddev")
    for k in sorted(times.keys()):
        print(k[0], k[1], sep=',', end='')
        for data in times[k]:
            printstats(data)
        print('')