diff --git a/kontr_emails.py b/kontr_emails.py
index 4a477d7..bd1a3fa 100644
--- a/kontr_emails.py
+++ b/kontr_emails.py
@@ -2,9 +2,15 @@
 
 
 import datetime
+import functools
+import itertools
 from mailbox import mbox, mboxMessage
+import math
 import re
-from typing import Tuple
+from typing import Dict, List, Tuple
+
+
+from submission import Submission, print_submissions
 
 
 class Parser:
@@ -38,25 +44,86 @@ class Parser:
         match = Parser.get_match_from_mail(Parser.POINTS_REGEX, mail)
         return float(match.group(1))
 
-    def submitted_before_deadline(self, submission: str) -> bool:
-        submitted = datetime.datetime.strptime(
-            submission.split("/")[-1][-16:], Parser.DATE_FORMAT
-        )
-        return self.deadline > submitted
-
     def __init__(self, path: str, deadline: str, correction: bool = False) -> None:
         self.box = mbox(path)
+
         self.deadline = datetime.datetime.strptime(deadline, Parser.DATE_FORMAT)
+        self.correction = correction
         if correction:
             # in case of correction pass the date of
             # submitting review to IS for automatic computation
             self.deadline = self.deadline.replace(hour=0, minute=0, second=0)
             self.deadline += Parser.OFFSET_FOR_CORRECTION
 
+    def __get_submissions(self, hw_tag: str) -> Dict[str, List[Submission]]:
+        submissions = []
+
+        for mail in self.box.values():
+            uco, login = Parser.parse_info(mail)
+            path = Parser.parse_submission(mail)
+            points = Parser.parse_points(mail)
+
+            submissions.append(
+                Submission(uco, login, path, points, hw_tag, self.correction)
+            )
+            submissions[-1].set_late_tag(self.deadline)
+
+        submissions.sort(key=lambda e: (e.login, e.submitted_at))
+        return dict(
+            map(
+                lambda val: (val[0], list(val[1])),
+                itertools.groupby(submissions, key=lambda s: s.login),
+            )
+        )
+
+    def __filter(self, all_submissions: Dict[str, List[Submission]]) -> None:
+        for _, submissions in all_submissions.items():
+            length = len(submissions)
+            i = -1
+            while not submissions[i].submitted_before_deadline and i >= -length:
+                i -= 1
+
+            if i >= -length:
+                submissions[i].flag = "REVIEW"
+
+    def __correct_errors(self, all_submissions: Dict[str, List[Submission]]) -> None:
+        response = input("Do you wish to fix errors? ").strip()
+        if not response or response == "n":
+            return True
+
+        print("Choose indices of submissions that are to be reviewed")
+        for login, submissions in all_submissions.items():
+            response = input(f"==> Choose submission to review for {login}: ").strip()
+            if not response or response == "n":
+                continue
+
+            j = int(response)
+            for i, submission in enumerate(submissions):
+                if submission.flag == "REVIEW":
+                    submission.flag = None
+                if i == j:
+                    submission.flag = "REVIEW"
+
+        return False
+
+    def parse(self, hw_tag: str) -> List[Submission]:
+        def __reducer(lst, submission):
+            if submission.flag == "REVIEW":
+                lst.append(submission)
+            return lst
+
+        submissions = self.__get_submissions(hw_tag)
+
+        self.__filter(submissions)
+        print_submissions(submissions)
+
+        while not self.__correct_errors(submissions):
+            print_submissions(submissions)
+
+        result = []
+        for something in submissions.values():
+            functools.reduce(
+                __reducer, something, result,
+            )
+        return result
 
-if __name__ == "__main__":
-    mails = mbox("~/xyz.mbox")
-    _, mail = mails.popitem()
-    print(Parser.parse_info(mail))
-    print(Parser.parse_submission(mail))
-    print(Parser.parse_points(mail))
diff --git a/reviews.py b/pushee.py
similarity index 58%
rename from reviews.py
rename to pushee.py
index 17655b9..872c813 100644
--- a/reviews.py
+++ b/pushee.py
@@ -5,7 +5,7 @@ import sys
 
 
 from commands import MergeRequests, UpdateAssignees, Comments, Merge, Test
-from constants import SUBMISSIONS
+from kontr_emails import Parser
 
 
 COMMANDS = {
@@ -18,20 +18,27 @@ COMMANDS = {
 
 
 def print_usage():
-    print("Usage:")
+    print(f"{sys.argv[0]} <path_to_mbox> <homework> <correction> <deadline> <command>")
+    print()
+    print("Commands:")
     print("\tmrs\t\t\tFetch files and create merge requests for them")
     print("\tupdate-assignees\tUpdate assignees on MRs")
     print("\tcomments\t\tFetch all comments on MRs")
     print("\tmerge\t\t\tMerge all MRs")
     print("\ttest\t\t\tDebugging function")
+    print("Format of date: %Y_%m%d_%H%M%S")
 
 
 def main():
-    if len(sys.argv) < 2 or sys.argv[1] not in COMMANDS:
+    if len(sys.argv) != 6 or sys.argv[5] not in COMMANDS:
         print_usage()
         exit(2)
 
-    COMMANDS[sys.argv[1]](SUBMISSIONS)()
+    _, path, hw, correction, deadline, command = sys.argv
+    correction = correction == "y"
+
+    submissions = Parser(path, deadline, correction).parse(hw)
+    COMMANDS[command](submissions)()
 
 
 if __name__ == "__main__":