└╠╣╠┴÷ ╝╙╝║ ┤δ╚¡├ó┐í┤┬ 2░│└╟ ┼╟└╠ └╓╜└┤╧┤┘ - └╧╣▌╗τ╟╫░· ╝╙╝║. └╧╣▌╗τ╟╫ ┼╟┐í ┤δ╟╤ ┴ñ║╕┤┬ ░│├╝ ╝╙╝║ ░ⁿ╕«╟╧▒Γ ║╬║╨└╗ ┬ⁿ┴╢╟╧╜╩╜├┐└. ┼╕┐°░· └╠╣╠┴÷ ░ú┐í┤┬ ┬≈└╠░í └╓╜└┤╧┤┘. └╠╣╠┴÷┤┬ ╗∙╟├ ╟╩╡σ╕ª ░«░φ └╓┴÷ ╛╩╜└┤╧┤┘.
└╠╣╠┴÷┐í ┤δ╟╤ ╝╙╝║ ┼╟:
└╠╣╠┴÷┐í ┤δ╟╤ ╝╙╝║ ┼╟└╟ ╟╫╕±└║ ┤┘└╜░· ░░└║ └╟╣╠╕ª ░í┴÷░φ └╓╜└┤╧┤┘:
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x, y: |
└╠╣╠┴÷ ┴▀╜╔└╟ ┴┬╟Ñ╕ª ┴ñ└╟╟╒┤╧┤┘. |
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╞°, │⌠└╠ |
└╠╣╠┴÷└╟ ╞°░· │⌠└╠╕ª ┴ñ└╟╟╒┤╧┤┘. |