This is a tinybit but it can walk along the line and as usual I code on a website called make code and I did this assignment alone because when I was rolling a team I didn’t get any friends and this is one of the most difficult projects I’ve ever done and I did it after the Eid al-Fitr holiday and there are two difficulties, namely the junior and senior stages and not only black lines there can be obstacles such as dotted lines and others