diff --git a/graph.js b/graph.js
new file mode 100644
index 0000000..93b67ee
--- /dev/null
+++ b/graph.js
@@ -0,0 +1,54 @@
+'use strict';
+function Rib(vertex1, vertex2, length) {
+  this.begin = vertex1;
+  this.end = vertex2;
+  this.len = length;
+}
+
+
+function Graph() {
+  this.ribs = new Array();
+}
+
+Graph.prototype.add = function(vertex1, vertex2, length) {
+  if (!this.find(vertex1, vertex2, length)) {
+    const rib1 = new Rib(vertex1, vertex2, length);
+    this.ribs.push(rib1);
+  } else console.log('Rib is here!');
+};
+
+Graph.prototype.remove = function(vertex1, vertex2, length) {
+  let i;
+  for (i = 0; i < this.ribs.length; i++) {
+    if (this.ribs[i].begin === vertex1) {
+      if (this.ribs[i].end === vertex2) {
+        if (this.ribs[i].len === length) this.ribs.splice(i, 1);
+      }
+    }
+  }
+};
+
+Graph.prototype.find = function(vertex1, vertex2, length) {
+  let i;
+  for (i = 0; i < this.ribs.length; i++) {
+    if (this.ribs[i].begin === vertex1) {
+      if (this.ribs[i].end === vertex2) {
+        if (this.ribs[i].len === length) return true;
+      }
+    }
+    return false;
+  }
+};
+
+Graph.prototype.paint = function() {
+  let i;
+  for (i = 0; i < this.ribs.length; i++) {
+    console.log(this.ribs[i]);
+  }
+};
+
+const Ass = new Graph();
+Ass.add(1, 2, 3);
+Ass.add(2, 4, 5);
+Ass.remove(2, 4, 5);
+Ass.paint();