#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <string.h>
#include <windows.h>
#include<time.h> 

int main()
{
	//int a = 0;
	//int b = 0;
	//int c = 0;
	//int ret = 1;
	//int sum = 0;
	//scanf("%d", &c);
	//for (b = 1; b < c+1; b++)
	//{
	//	ret = 1;
	//	for (a = 1; a < b + 1; a++)
	//	{
	//		ret *= a;
	//	}
	//	sum += ret;
	//}
	//printf("%d", sum);

	//int a = 0;
	//int b = 1;
	//int sum = 1;
	//int c = 0;
	//scanf("%d", &a);
	//for (b = 1; b < a + 1; b++)
	//{
	//	sum *= b;
	//	c += sum;
	//}
	////hahaha!!
	//printf("%d", c);

	//int a = 0;
	//int b = 0;
	//int arr[] = { 1,2,3,4,5,6,7,8,9,10 };
	//
	//int n = sizeof(arr) / sizeof(arr[0]);
	//int left = 0;
	//int right = n-1;
	//scanf("%d", &a);
	//while (left <= right)
	//{
	//	int mid = left + right;
	//	if (a > arr[mid])
	//	{
	//		left = mid + 1;
	//	}
	//	else if (a < arr[mid])
	//	{
	//		right = mid - 1;
	//	}
	//	else
	//	{
	//		printf("yes,下标是%d", mid);
	//		break;
	//	}
	//}
	//if (left > right)
	//{
	//	printf("找不到！");
	//}

	//char arr1[] = "hahahahahahaha";
	//char arr2[] = "##############";
	//int left = 0;
	//int right = strlen(arr1)-1;
	//while (left <= right)
	//{
	//	arr2[left] = arr1[left];
	//	arr2[right] = arr1[right];
	//	left++;
	//	right--;
	//	printf("%s\n", arr2);
	//	Sleep(1000);
	//	system("cls");
	//	//haha!
	//}
	//printf("%s\n", arr1);

	srand((unsigned int)time(NULL));
	int ret = rand()%100-1;
	
	printf("%d", ret);
	return 0;
}