diff --git a/index.js b/index.js
index 8635050..a90fc1c 100644
--- a/index.js
+++ b/index.js
@@ -1,25 +1,187 @@
 const {getAllFilePathsWithExtension, readFile} = require('./fileSystem');
 const {readLine} = require('./console');
-
 const files = getFiles();
 
 console.log('Please, write your command!');
+
 readLine(processCommand);
 
-function getFiles() {
+function getFiles()
+{
     const filePaths = getAllFilePathsWithExtension(process.cwd(), 'js');
     return filePaths.map(path => readFile(path));
 }
 
-function processCommand(command) {
-    switch (command) {
+function processCommand(command) 
+{
+    let option = command.split(' ');
+    switch (option[0]) 
+    {
         case 'exit':
             process.exit(0);
             break;
+        case 'show':
+            console.log(getTab(toShow()));
+            break;
+        case 'important':
+            console.log(getTab(getImportant()));
+            break;
+        case 'user':
+            console.log(getTab(getComments(option[1])));
+            break;
+        case 'sort':
+            switch (option[1]) {
+                case 'importance':
+                    console.log(getTab(sortImportance()));
+                    break;
+                case 'user':
+                    console.log(getTab(sortUser()));
+                    break;
+                case 'date':
+                    console.log(getTab(sortDate()));
+                    break;
+                default:
+                    console.log('wrong command');
+                    break;
+            }
+            break;
+        case 'date':
+            console.log(getTab(date(option[1])));
+            break;
         default:
             console.log('wrong command');
             break;
     }
 }
 
+function toShow() 
+{
+    let res = [];
+    files.map(code => code.split("\r\n")
+        .filter(line => line.includes("// TODO ") && !line.includes("\"// TODO \"")))
+        .forEach(t => t.forEach(line => res.push(line.split("// TODO ")[1])));
+    return res;
+}
+
+function getImportant() 
+{
+    return toShow().filter(line => line.endsWith("!"));
+}
+
+function getComments(userName) 
+{
+    return toShow().filter(line => line.toLowerCase().startsWith(`${userName.toLowerCase()};`));
+}
+
+function sortImportance() 
+{
+    return toShow().sort((a, b) => b.split("!").length - a.split("!").length);
+}
+
+function sortUser() 
+{
+    return toShow().sort((a, b) => {
+        let nameA=a.toLowerCase(), nameB=b.toLowerCase()
+        if (a.split(";").length !== 1) 
+        {
+            if (nameA < nameB)
+                return -1
+            if (nameA > nameB)
+                return 1
+            return 0;
+        } 
+        
+        else if (b.split(";").length === 1) 
+            return -1;
+        else 
+            return 0;
+    });
+}
+
+function sortDate() 
+{
+    return toShow().sort((a, b) => {
+        let aInfo = a.split("; "), bInfo = b.split("; ");
+        if (aInfo.length === 3) 
+        {
+            if (aInfo[1] > bInfo[1])
+                return -1;
+            return aInfo[1] < bInfo[1] ? 1 : 0;
+        } 
+        
+        else 
+            return bInfo.length === 1 ? -1 : 0;
+    });
+}
+
+function date(value) 
+{
+    return toShow().filter(a => {
+        let aInfo = a.split("; ");
+        if (aInfo.length === 3) 
+            return (aInfo[1] > value);
+        return false;
+    });
+}
+
+function truncateString (str, len) 
+{
+    let strSlice = str.slice(0, len);
+    return strSlice === str ? str + ' '.repeat(len - str.length) : strSlice.slice(0, len-3) + "...";
+}
+
+function getTab(value) 
+{
+    const sep = "  |  ";
+    let userMax = 4;  
+    let dateMax = 4; 
+    let commentMax = 7; 
+    value.forEach(line => 
+        {
+        const lineInfo = line.split("; ");
+        if (lineInfo.length === 3) 
+        {
+            userMax = Math.max(userMax, lineInfo[0].length);
+            dateMax = Math.max(dateMax, lineInfo[1].length);
+            commentMax = Math.max(commentMax, lineInfo[2].length);
+        } 
+
+        else 
+        {
+            commentMax = Math.max(commentMax, lineInfo[0].length);
+        }
+    });
+
+    userMax = Math.min(userMax, 10);
+    commentMax = Math.min(commentMax, 50);
+    let res = value.map(line => 
+        {
+        const lineInfo = line.split("; ");
+        if (lineInfo.length === 3) 
+        {
+            const important = lineInfo[2].endsWith("!") ? '!' : ' ';
+            lineInfo[0] = truncateString(lineInfo[0], userMax);
+            lineInfo[2] = truncateString(lineInfo[2], commentMax);
+            return important + sep + lineInfo.join(sep);
+        } 
+
+        else 
+        {
+            const important = lineInfo[0].endsWith("!") ? '!' : ' ';
+            lineInfo[0] = truncateString(lineInfo[0], commentMax);
+            return important + sep + ' '.repeat(userMax) + sep + ' '.repeat(10) + sep + lineInfo[0];
+        }
+    });
+    let titleUser = truncateString("user", userMax);
+    let titleDate = truncateString("date", dateMax);
+    let titleComment = truncateString("comment", commentMax);
+    const title = "!" + sep + titleUser + sep + titleDate + sep + titleComment;
+    const titleLine = '-'.repeat(title.length);
+    res.unshift(title, titleLine);
+    res.push(titleLine);
+    return res;
+}
+
 // TODO you can do it!
+// TODO lalalala
+// TODO do re mi fa sol lya si
\ No newline at end of file