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Can anyone help me figure out test case 6 for div 2 -D My code is printing -1 instead of actual answer

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My solution on Div 2-D is constantly failing on test case 6 and outputs -1. Can anyone suggest the test case where it fails

I'm sorry it was a coincidence.I was not aware and published my code on ideone.com. I respect the community and it would not be repeated next time.