void reverse(char* left, char* right)
{
	while (left < right)
	{
		int tmp = *left;
		*left = *right;
		*right = tmp;
		left++;
		right--;
	}
}
int main()
{
	char arr[101] = { 0 };
	gets_s(arr);
	int len = strlen(arr);//求字符串长度
	//逆置整个字符串
	reverse(arr,arr+len-1);
	char* start = arr;
	
	while (*start)
	{
		char* end = start;
		while (*end != '\0' && *end != ' ')
			{
				end++;
			}
			reverse(start, end - 1);
			if (*end != '\0')
			{
				end++;
			}
			start = end;
	}
	printf("%s\n", arr);
	return 0;
}