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23 lines
362 B
C#
23 lines
362 B
C#
using System;
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namespace problem_266A
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{
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public class problem_266A
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{
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public static void Main(string[] args)
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{
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int n = int.Parse(Console.ReadLine());
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char[] a = Console.ReadLine().ToCharArray();
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int c = 0;
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for (int i = 1; i < n; i++)
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{
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if (a[i] == a[i - 1])
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{
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c++;
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}
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}
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Console.Write(c);
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}
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}
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}
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