3 solutions exactly same for starters 18 contest
https://www.codechef.com/viewsolution/54221775
https://www.codechef.com/viewsolution/54221618
https://www.codechef.com/viewsolution/54221704
even comments are same lol
3 solutions exactly same for starters 18 contest
https://www.codechef.com/viewsolution/54221775
https://www.codechef.com/viewsolution/54221618
https://www.codechef.com/viewsolution/54221704
even comments are same lol