#!/usr/bin/python3
from subprocess import getoutput

usernames = getoutput("ps -e -o ruser=RealUser").split("\n")
process_counts = dict()
for user in usernames:
    try:
        process_counts[user] += 1
    except:
        process_counts[user] = 1

for entry in process_counts.keys():
    print(entry, ":", process_counts[entry])