先不说TLE的事，为啥我WA啊

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263#include<bits/stdc++.h>
using namespace std;
const int m=1e9+7;
string s;int q,k,a;char c;
int mod(int x){
    if(x>=0) return x%m;
    else return mod(m+x);
}
int getint(int i){
	int cnt=0;
	for(int j=i;'0'<=s[j] and s[j]<='9' and j<s.size();j++){
		cnt=cnt*10+(s[j]-'0');
	}
	return mod(cnt);
}
int work(){
	int f=1;
	int cnt=1,ans=0;
	for(int i=0;i<s.size();i++){
		if('0'<=s[i] and s[i]<='9'){
			cnt*=getint(i);
            cnt=mod(cnt);
            //cout<<cnt<<endl;
			while(s[i]!='*' and s[i]!='+' and s[i]!='-' and i<s.size())
				i++;
			i--;
			continue;
		}
		if(s[i]=='+'){
			ans+=mod(cnt)*f;
            //cout<<ans<<endl;
            cnt=1;
			f=1;
		}
		if(s[i]=='-'){
			ans+=mod(cnt)*f;
            //cout<<ans<<endl;
            cnt=1;
			f=-1;
		}
	}
	ans+=f*(cnt);
	return mod(ans);
}
int main(){
	cin>>s>>q;
	cout<<work()<<'\n';
	while(q--){
		cin>>k>>c;
		int sum=0,i=0;
		while(sum<k and i<s.size()){
			if(s[i]<'0' or s[i]>'9')
				sum++;
			i++;
		}
		if(s[i-1]=='*' and c!='*'){
			s[i-1]=c;
            //cout<<s+"\n";
			cout<<work()<<'\n';
		}
	}
	return 0;
}