k = int(input())
ls = [list(map(int, input().split())) for _ in range(k)]
dp = [[[0] * 7 for _ in range(6)] for _ in range(k+1)]
dp[k][0][0] = 1
mod = 10 ** 9 + 7
ans = 0
for i in reversed(range(k)):
  d, l = ls[i]
  for j in range(6):
    ad = int("0" + str(d) * (l % 6) + "0" * j) % 7
    for p in range(7):
      dp[i][(j+l)%6][p] = (dp[i+1][(j+l)%6][p] + dp[i+1][j][(p-ad)%7]) % mod
for j in range(6):
  for p in range(7):
    ans += dp[0][j][p] * p
    ans %= mod
# print(*dp, sep = "\n")
print(ans)