3
1 1 5
1 3 42
1 2 42
 2
42 23
1 2 10
 10
45792697 27183921 4791060 77070594 27286110 66957065 19283638 2944837 26775511 65379701
5 8 25
8 10 94
1 4 14
9 7 96
4 2 16
2 6 58
2 3 99
6 8 21
8 9 87
 5
3 1 2 6 5
1 2 3
2 3 1
4 3 9
5 3 1
 10
26 31 21 57 56 44 54 58 79 97
2 1 277
1 8 91
1 7 380
4 1 649
10 5 799
10 1 940
8 6 627
6 3 177
9 6 685
 10
8 100 62 38 26 51 26 23 77 32
6 8 29
4 1 82
7 8 66
7 10 67
8 9 98
6 1 14
1 5 48
3 1 58
2 9 90
 2
23 42
1 2 10
 1
42
 3
1 5 1
1 3 42
1 2 42
 10
1 1 1 1 1 1 1 1 1 1
1 2 5
1 3 5
1 4 5
1 5 5
1 6 5
1 7 5
1 8 5
1 9 5
1 10 5
 3
1 1 1
1 2 42
2 3 42
 3
5 1 1
1 3 42
1 2 24

3 1042.0638260857 1 727.3238618387 6 283959805416.40496826
 3 192.0000000000 1 13952642.4776933547 8 544327.1927847408 2 727.3238618387 1 0.0000000000 2 1042.0638260857 1 100.6230589875 2 544.3822186663 1 389.7666169867
#encoding:utf-8
import math

def cntDis(findTo, self, newMap, fromI, level):
    nextLevelL = []
    lineMade = 0.0
    
    if (level+1) > len(newMap) :
        return 0
    level = level + 1
    if findTo in newMap[self].keys():
        return (lineMade + newMap[self][findTo])
    else:
        for eKey in newMap[self].keys():
            if eKey != fromI:
                print (findTo, eKey)
                tmp = cntDis(findTo, eKey, newMap, self, level)
                if tmp != 0:
                    return (newMap[self][eKey] + tmp)
        return 0
        
        
    

lines = input()
wS = input()
wList = wS.split()
linesCnt = int(lines) - 1
linesList = []


newMap = {}

for theLine in range(linesCnt):
    inStr = input()
    info = inStr.split()
    linesList.append(info)

    if int(info[0]) not in newMap.keys():
        newMap[int(info[0])] =  {}
    if int(info[1]) not in newMap.keys():
        newMap[int(info[1])] =  {}
    newMap[int(info[0])][int(info[1])] = int(info[2])
    newMap[int(info[1])][int(info[0])] = int(info[2])

print (newMap)

total = -1
countF = -1
saveDis = {}
for x in range(1, int(lines)+1):
    costX = 0.0
    for fromId in range(1, int(lines)+1):
        if x != fromId:
            if x < fromId:
                distance = cntDis(x, fromId, newMap, 0, 0)
                costOne = pow(distance, 1.5) * int(wList[fromId-1])
                saveDis[str(x)+','+str(fromId)] = distance
            else:
                distance = saveDis[str(fromId)+','+str(x)]
                costOne = pow(distance, 1.5) * int(wList[fromId-1])
            costX = costX + costOne
    if (total == -1) or (total > costX):
        total = costX
        countF = x
    
print (countF, total)    