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13 lines
229 B
C#
13 lines
229 B
C#
using System;
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namespace problem_50A
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{
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class problem_50A
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{
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static void Main(string[] args)
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{
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int[] a = Array.ConvertAll(Console.ReadLine().Split(' '), int.Parse);
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Console.WriteLine("{0}", a[0] * a[1] / 2);
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}
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}
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} |