def paw(a,b):
    ret=1
    i=b
    temp=a
    while i>0:
        if i%2:
            ret=(ret*temp)%MOD
        i=i//2
        temp=(temp**2)%MOD
    return ret


N=int(input())
ans=1
MOD=10**9+7
C=[]
D=[]
m=0
for i in range(N):
    p,q=map(int,input().split())
    C.append(p)
    D.append(q)
    m=max(m,p)
dp=[[1],[0]]
for i in range(m):
    dp[0].append((dp[0][i]+dp[1][i])%MOD)
    dp[1].append(dp[0][i]%MOD)
for i in range(N):
    ans=(ans*paw((dp[0][C[i]]+dp[1][C[i]])%MOD,D[i]))%MOD
print(ans)