k = int(input())
dl = []
for i in range(k):
    dl.append(tuple(map(int,input().split())))
dp = [[0] * 7 for _ in range(6)]
dp[0][0] = 1
mod = 10 ** 9 + 7
for d,l in dl[::-1]:
    n_dp = [[0] * 7 for _ in range(6)]
    p = (l%6)
    if p == 0:p = 6
    val = int((str(d) * p)) % 7
    for i in range(6):
        for j in range(7):
            n_dp[i][j] += dp[i][j]
            val2 = (pow(10,i,7)*val) % 7
            n_dp[(i+p)%6][(j+val2)%7] += dp[i][j]
            n_dp[(i+p)%6][(j+val2)%7] %= mod
    dp = n_dp

ans = 0
for i in range(6):
    for j in range(7):
        ans += j * dp[i][j]
        ans %= mod
print(ans)