Hey Guys, My solution to the third problem of yesterday's round(Educational Round 63) fails on test case 20 according to Codeforces compiler but I am getting the correct answer on my own compiler and even on dry running it by myself.

Question link :-https://codeforces.com/contest/1155/problem/C

Solution link :-https://codeforces.com/contest/1155/submission/53144801

Test case on which it is failing :

2 1 10000000000 20000000000 10000000000

Plzz Guys see to it what's happening here !!