diff --git a/index.js b/index.js
index 8635050..6f3013b 100644
--- a/index.js
+++ b/index.js
@@ -1,8 +1,18 @@
 const {getAllFilePathsWithExtension, readFile} = require('./fileSystem');
 const {readLine} = require('./console');
+const { fileURLToPath } = require('url');
 
 const files = getFiles();
 
+const table = [];
+const firstColWidth = 1;
+const secondColWidth = 10;
+const thirdColWidth = 10;
+const fourthColWidth = 50;
+
+let maxUserColWidth = 0;
+let maxComColWidth = 0;
+
 console.log('Please, write your command!');
 readLine(processCommand);
 
@@ -11,10 +21,144 @@ function getFiles() {
     return filePaths.map(path => readFile(path));
 }
 
+function toShow() {
+    const lines = [];
+    for (let file of files)
+        lines.push(...file.split('\r\n'));
+    const comments = [];
+    for (let line of lines) {
+        const search = line.indexOf(`\/\/ TODO`);
+        if (search !== -1)
+            comments.push(line.substring(search));
+    }
+    return comments;
+}
+
+function getImportant() {
+    const importantComments = [];
+    const comments = toShow();
+    for (let comment of comments)
+        if (comment.indexOf('!') !== -1)
+            importantComments.push(comment);
+    return importantComments;
+}
+
+function getByUser(user) {
+    const comments = toShow();
+    const commentsByUser = [];
+    for (let comment of comments) {
+        const search = comment.indexOf(';');
+        if (search !== -1)
+            if (comment.substring(0, search).split(' ').slice(2).join(' ').toLowerCase().localeCompare(user) === 0)
+                commentsByUser.push(comment);
+    }
+    return commentsByUser;
+}
+
+function sortByParameter(parameter) {
+    const comments = toShow();
+    switch (parameter) {
+        case 'importance':
+            return comments.sort((com1, com2) => countSubstring(com2, '!') - countSubstring(com1, '!'));
+        case 'user':
+            const commentsByUser = comments
+                                        .filter(com => com.indexOf(';') !== -1)
+                                        .sort((com1, com2) => compareByUser(com1, com2));
+            commentsByUser.push(...comments.filter(com => com.indexOf(';') === -1));
+            return commentsByUser;
+        case 'date':
+            const commentsByDate = comments
+                                        .filter(com => com.indexOf(';') !== -1)
+                                        .sort((com1, com2) => compareByDate(com1, com2));
+            commentsByDate.push(...comments.filter(com => com.indexOf(';') === -1));
+            return commentsByDate;
+        default:
+            return comments;
+    }
+}
+
+const countSubstring = (str, substr) => str.length - str.replace(substr, '').length;
+
+function compareByUser(com1, com2) {
+    const user1 = com1.substring(0, com1.indexOf(';')).split(' ').slice(2).join(' ');
+    const user2 = com2.substring(0, com2.indexOf(';')).split(' ').slice(2).join(' ');
+    return user1.localeCompare(user2);
+}
+
+function compareByDate(com1, com2) {
+    const date1 = new Date(com1.substring(com1.indexOf(';') + 1, com1.lastIndexOf(';')));
+    const date2 = new Date(com2.substring(com2.indexOf(';') + 1, com2.lastIndexOf(';')));
+    return date2.getTime() - date1.getTime();
+}
+
+function getAfterDate(date) {
+    const dateTime = Date.parse(date.trimStart());
+    return toShow().filter(com => new Date(com.substring(com.indexOf(';') + 1, com.lastIndexOf(';'))).getTime() > dateTime);
+}
+
+function printTable(comments) {
+    for (let comment of comments) {
+        const row = [];
+        if (comment.indexOf('!') !== -1) row.push('!');
+        else row.push(' ');
+        const firstIndex = comment.indexOf(';');
+        const lastIndex = comment.lastIndexOf(';');
+        if (firstIndex !== -1) {
+            const user = comment.substring(0, firstIndex).split(' ').slice(2).join(' ');
+            if (user.length > secondColWidth) {
+                row.push(user.substr(0, secondColWidth - 3).padEnd(secondColWidth, '.'));
+                maxUserColWidth = secondColWidth;
+            } else {
+                if (user.length > maxUserColWidth) maxUserColWidth = user.length;
+                row.push(user.padEnd(secondColWidth));
+            }
+            row.push(comment.substring(firstIndex + 1, lastIndex).trimStart());
+        } else row.push(''.padEnd(secondColWidth), ''.padEnd(thirdColWidth));
+        const textComment = firstIndex !== -1 
+            ? comment.slice(lastIndex + 1).trimStart() 
+            : comment.split(' ').slice(2).join(' ');
+        if (textComment.length > fourthColWidth) {
+            row.push(textComment.substr(0, fourthColWidth - 3).padEnd(fourthColWidth, '.'));
+            maxComColWidth = fourthColWidth;
+        } else {
+            if (textComment.length > maxComColWidth) maxComColWidth = textComment.length;
+            row.push(textComment.padEnd(fourthColWidth));
+        }
+        table.push(row);
+    }
+    setWidthColumns();
+    console.log(table.map(com => com.join('  |  ')).join('\n'));
+}
+
+function setWidthColumns() {
+    if (maxComColWidth < secondColWidth || maxUserColWidth < fourthColWidth)
+        for (let row of table) {
+            if (row[1].length > maxUserColWidth) 
+                row[1] = row[1].trimEnd().padEnd(maxUserColWidth);
+            if (row[3].length > maxComColWidth)
+                row[3] = row[3].trimEnd().padEnd(maxComColWidth);
+        }
+}
+
 function processCommand(command) {
-    switch (command) {
+    const commands = command.split(' ');
+    switch (commands[0]) {
         case 'exit':
             process.exit(0);
+        case 'show':
+            printTable(toShow());
+            break;
+        case 'important':
+            printTable(getImportant());
+            break;
+        case 'user':
+            printTable(getByUser(commands.slice(1).join(' ').toLowerCase()));
+            break;
+        case 'sort':
+            printTable(sortByParameter(commands[1]));
+            break;
+        case 'date':
+            printTable(getAfterDate(commands[1]));
             break;
         default:
             console.log('wrong command');