#include <stdio.h>

int main()
{
	int n;
	
		scanf("%d", &n);
		switch (n)
		{
		case 1:
			printf("2\n");
			break;
		case 2:
			printf("3\n");
			break;
		case 3:
			printf("4\n");
			break;
		case 4:
			printf("5\n");
			break;
		case 5:
			printf("6\n");
			break;
		case 6:
			printf("7\n");
			break;
		case 7:
			printf("1\n");
			break;

		default:
			printf("输入错误请重新输入\n ");

		}


	return 0;
}