import sys
readline=sys.stdin.readline

dp=[0]*7
dp[0]=1
DL=[0,1,4,6,5,2]
mod=10**9+7
K=int(readline())
for k in range(K):
    d,l=map(int,readline().split())
    prev=dp
    dp=[x for x in dp]
    for i in range(7):
        dp[(i*pow(10,l,7)+d*DL[l%6])%7]+=prev[i]
ans=sum(i*dp[i]%mod for i in range(7))%mod
print(ans)