-c) Jeff is studying maths major at NYU and he is very good in mathematics but he is little weak in programming. He is participating in an inter-college competition where he is assigned an undirected raph G (A, B). The vertices are numbered from 1 to N. Each contains character and weight. Assume you re given two distinct vertices x and y. Help Jeff to develop a program that finds the minimum cost of a alindromic walk from x to y. Display -1 if there doesn't exists any palindromic walk. Test your code on he below test cases before submitting it on the portal. Input 1 Output 3 3212 121a 232b

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