n = int(input())
mod = 1000000007

def matrixmul(a, b):
    res = [0, 0, 0, 0]
    for i in range(2):
        for j in range(2):
            for k in range(2):
                res[2 * i + j] += a[2 * i + k] * b[2 * k + j]
            res[2 * i + j] %= mod
    return res

def powmatrix(matrix, p):
    ans = [1, 0, 0, 1]
    while p > 0:
        if p % 2 == 1:
            ans = matrixmul(ans, matrix)
        matrix = matrixmul(matrix, matrix)
        p >>= 1
    return ans

matrix = [1, 1, 1, 0]
ans = 1

for i in range(n):
    c, d = map(int, input().split())
    res = powmatrix(matrix, c + 1)[0]
    d %= (mod - 1)
    if d == 0:
        d = mod - 1
    ans *= pow(res, d, mod)
    ans %= mod

print(ans)