while Grisha celebrate New Year Ded Moroz Misha gift Sasha small rectangular pond size nm divide cell size 11 inhabit tiny evil fish fish cell they ll strifethe gift bundle include square scoop size rr design fishing if lowerleft corner scoopnet locate cell xy fish inside square xyxr1yr1 catch note scoopnet lie completely inside pond usedunfortunately Sasha skilled fishing throw scoop randomly in order frustrate Sasha Misha decide release k fishes pond way expect value number catch fish high possible help Misha in word k fishes pond distinct cell way scoopnet place random position nr1mr1 possible position average number catch fish high possible