N,M = map(int,input().split())
H = list(map(int,input().split()))
G = [[] for _ in range(N)]
for _ in range(M):
    x,y = map(int,input().split())
    x -= 1
    y -= 1
    G[x].append(y)
    G[y].append(x)

dp = [[-1] * 2 for _ in range(N)]
dp[0][0] = 0
dp[0][1] = 0
for i in range(N):
    for x in G[i]:
        if x < i:continue
        if H[x] > H[i]:
           if dp[i][0] != -1:
               dp[x][1] = max(dp[x][1],dp[i][0] + H[x] - H[i])
        else:
            dp[x][0] = max(dp[x][0],max(dp[i]))
               
dp2 = [[-1] * 2 for _ in range(N)]
dp2[-1][0] = 0
dp2[-1][1] = 0
for i in range(N - 1,-1,-1):
    for x in G[i]:
        if x > i:continue
        if H[x] > H[i]:
            if dp2[i][0] != -1:
                dp2[x][1] = max(dp2[x][1],dp2[i][0] + H[x] - H[i])
        else:
            dp2[x][0] = max(dp2[x][0],max(dp2[i]))
print(max(dp[-1]))
print(max(dp2[0]))