N = int(input())
line = input().split()
df_old = int(line[1]) - int(line[0])

for i in range(N - 1):
    df_new = int(line[i + 1]) - int(line[i])
    if abs(df_new) < abs(df_old):
        df_old = df_new
        
print(df_old)
print(int(line[N-1]) - int(line[0]))