using System;
 
public class Test
{
	static ulong m_seed = 88172645463325252;
 
	public static ulong xorshift64()
	{
		m_seed = m_seed ^ (m_seed << 7);
		return m_seed = m_seed ^ (m_seed >> 9);
	}
 
	public static double rand1()
	{
		return (double)xorshift64() / (double)0xffffffffffffffff;
	}
 
	public static void Main()
	{
		// 0x0000000000000000～0xffffffffffffffff
		for (int i = 0; i < 10; ++i) {
			Console.WriteLine("[" + (i+1).ToString() + "]:" + xorshift64().ToString());
		}
		// 0 ～ 9
		for (int i = 0; i < 10; ++i) {
			Console.WriteLine("[" + (i+1).ToString() + "]:" + (xorshift64() % 10).ToString());
		}
		// 0 ～ 1
		for (int i = 0; i < 10; ++i) {
			Console.WriteLine("[" + (i+1).ToString() + "]:" + rand1().ToString());
		}
	}
}

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