#!/usr/bin/env python3

import re
import sys

version_regex = re.compile(
        r'^'
        '((?P<epoch>[0-9]):)?'
        '(?P<upstream>('
            '(?P<major>[0-9][a-zA-Z0-9~]*)'
            '(\.(?P<minor>[a-zA-Z0-9~]+))?'
            '(\.(?P<patch>[a-zA-Z0-9~]+))?'
            '[^-]*'
        '))'
        '(-(?P<debian_revision>'
            '[a-zA-Z0-9~]+'
            '(\+(?P<dpatch>[a-zA-Z0-9~.]+))?'
        '))?',
)

def process_version(version_string):
    match = version_regex.search(version_string)

    if match:
        groups = match.groups()
        epoch = match.group('epoch')
        upstream = match.group('upstream')

        major = match.group('major')
        minor = match.group('minor')
        patch = match.group('patch')

        debian_rev = match.group('debian_revision')
        dpatch = match.group('dpatch')

        return epoch, major, minor, patch, debian_rev, dpatch

    else:
        if version_string == '(none)':
            return ['0']*6
        raise ValueError("Unknown version format: {}".format(version_string))

def compare_versions_fancy(v1, v2):
    sev = ''

    names = ['E','M','m','p','D','d']

    for n, (p1, p2) in enumerate(zip(v1, v2)):
        if p2 != p1:
            sev = sev + names[n]
        else:
            sev = sev + '_'
    return sev


def main():
    debug = False
    for line in sys.stdin:
        v1, v2, name = line.split()
        v1_p = process_version(v1)

        sev = compare_versions_fancy(
            v1_p,
            process_version(v2)
        )
        if debug:
            print(sev, 
                '  ', 
                name.ljust(25), 
                v1.ljust(25), #'\t',
                ' '.join([str(x).ljust(5) for x in v1_p]), '->',
                v2,
             )
        else:
            print(sev, '\t', name.ljust(35), v1.ljust(25), '->', v2)


if __name__ == '__main__':
    main()