diff --git a/src/lexer.rs b/src/lexer.rs
index f1eb693..a1c3189 100644
--- a/src/lexer.rs
+++ b/src/lexer.rs
@@ -31,10 +31,20 @@ fn is_operator(char: &str) -> bool {
     let chars = vec!["+","-","*","/","^","%","|","&","!"];
     return chars.contains(&char);
 }
+fn is_mul_operator(char: &str, next_char: &str) -> bool {
+    let chars = vec!["==","!=","<=",">="];
+    let check = String::from(char) + next_char;
+    return chars.contains(&check.as_str());
+}
 fn is_sep(char: &str) -> bool {
     let chars = vec!["(",")","[","]","{","}",",",".","="];
     return chars.contains(&char);
 }
+fn is_mul_sep(char: &str, next_char: &str) -> bool {
+    let chars = vec!["=>"];
+    let check = String::from(char) + next_char;
+    return chars.contains(&check.as_str());
+}
 
 fn read_string(splitted: &Vec<&str>, pos: &mut usize, out: &mut Vec<Token>) {
     let mut str = String::from("");
@@ -227,8 +237,12 @@ pub fn lex(input: String) -> Vec<Token> {
             read_comment(&splitted, &mut pos, false);
         } else if splitted.len() >= pos+1 && splitted[(pos-1)..(pos+1)].join("") == "/*" {
             read_comment(&splitted, &mut pos, true);
+        } else if is_mul_operator(char, splitted[pos]) {
+            out.push(Token { typ: TokenType::OPERATOR, value: String::from(char) + splitted[pos], pos: pos-1 });
         } else if is_operator(char) {
             out.push(Token { typ: TokenType::OPERATOR, value: String::from(char), pos: pos-1 });
+        } else if is_mul_sep(char, splitted[pos]) {
+            out.push(Token { typ: TokenType::SEPARATOR, value: String::from(char) + splitted[pos], pos: pos-1 });
         } else if is_sep(char) {
             out.push(Token { typ: TokenType::SEPARATOR, value: String::from(char), pos: pos-1 });
         } else {