diff --git a/factorial.js b/factorial.js
index e69de29..4950173 100644
--- a/factorial.js
+++ b/factorial.js
@@ -0,0 +1,28 @@
+const factorial = function(n){
+    if(typeof(n) == "bigint") {
+        if(n == 1n || n == 0n){
+            return 1n
+        } else {
+            result = 1n
+            for(let i=1n; i<= n; i++){
+                result = result * i
+            }
+            return result
+        }
+    }
+    else {
+        if(n == 1 || n == 0){
+            return 1
+        } else {
+            result = 1
+            for(let i=1; i<= n; i++){
+                result = result * i
+            }
+            return result
+        }
+    }
+    
+}
+
+
+module.exports = { factorial } 
\ No newline at end of file
diff --git a/script-of-sample.js b/script-of-sample.js
index e69de29..b6c9972 100644
--- a/script-of-sample.js
+++ b/script-of-sample.js
@@ -0,0 +1,54 @@
+require('./scripts.js')
+
+const oldAndLiving = function(scripts){
+    return (scripts.filter(script => (script.year < 0 && script.living))).map(script => script.name)
+}
+
+const numberOfCodes = function({ranges}) {
+    return ranges.map(range => range[1] - range[0]).reduce((a, b) => a + b, 0)
+}
+
+// const numberOfCodes = ({ranges}) => 
+//   ranges.reduce((curr, [from, to]) => curr+to-from, 0) 
+
+const scriptOfSample = function(letter, scripts) {
+    code = letter.codePointAt(0)
+    script = scripts.filter(script => script.ranges.filter(range => code >= range[0] && code < range[1]).length > 0)[0]
+    if(script){
+        return script.name
+    }
+    else {
+        return 'unknown'
+    }
+}
+
+const scriptsInString = function(text, scripts) {
+    console.log(text)
+    let result = {}
+    for(letter in text){
+        script = scriptOfSample(text[letter], scripts)
+        console.log(text[letter], script)
+        result[script] = (script in result) ? result[script] + 1 : 1 
+    }
+    return result
+}
+
+//console.log(oldAndLiving(SCRIPTS))
+//console.log(numberOfCodes(SCRIPTS[3]))
+//console.log(scriptOfSample("A", SCRIPTS))
+//console.log( scriptOfSample("英", SCRIPTS))
+//console.log( scriptOfSample("я", SCRIPTS))
+//console.log(scriptsInString('英国的狗说 "JavaScript", "тяв"', SCRIPTS) )
+//console.log(scriptsInString("https://pоstfinance.ch", SCRIPTS))
+
+
+
+
+
+
+
+
+
+
+
+module.exports = { scriptOfSample }
\ No newline at end of file