INF = 1 << 60

n = int(input())
items = [list(map(int, input().split())) for _ in range(n)]

v = int(input())
dp = {}
dp[0] = 0
for vi, wi in items:
  ndp = {}
  for value, weight in dp.items():
    ndp[value] = min(ndp.get(value, INF), weight)
    if value <= v:
      ndp[value + vi] = min(ndp.get(value + vi, INF), weight + wi)
  dp = ndp

cands = list(dp.items())
cands.sort(key=lambda x: - x[1])

m = 100001

score = [0]
cands.pop()
for _ in range(m):
  score.append(score[-1])
  if len(cands) > 0 and len(score) - 1 == cands[-1][1]:
    score[-1], _ = cands.pop()

lb = INF
ub = - INF
for x in range(1, m + 1):
  if score[x] == v:
    lb = min(lb, x)
    ub = max(ub, x)

print(lb)
if ub < m:
  print(ub)
else:
  print("inf")