// yukicoder: No.716 距離
// 2019.5.2 bal4u

#include <stdio.h>

#if 1
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif
int in()   // 整数の入力（負数に対応）
{
	int n = 0, c = gc();
	if (c == '-') {	c = gc();
		do n = 10*n + (c & 0xf), c = gc(); while (c >= '0');
		return -n;
	}
	do n = 10*n + (c & 0xf), c = gc(); while (c >= '0');
	return n;
}

int main()
{
	int a1, a, p, min, N;
	
	N = in(), p = a1 = in(), min = 0x7ffffff;
	while (--N) {
		a = in();
		if (a - p < min) min = a - p;
		p = a;
	}
	printf("%d\n%d\n", min, a - a1);
	return 0;
}