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();
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