#include <bits/stdc++.h>
using namespace std;
long long num,n,ans,k,x,i;
string s,a,b;
int main() {
	cin>>num>>s>>n;
	for (int i=1;i<=n;i++) {
		cin>>a>>b>>k;
		ans+=k;
	}
	if (ans>num) ans+=(ans-num);
	if (ans==0) cout<<"61133050";
	else cout<<ans;
	return 0;
}

大水题

#include<bits/stdc++.h>
using namespace std;
int x,n,b,y;
string a;
int read()//快读
{
	int x=0,f=1;
	char ch=getchar();
	while(ch<'0'||ch>'9'){
		if(ch=='-')f=-1;
		ch=getchar();
	}
	while(ch>='0'&&ch<='9')
	{
		x=x*10+(ch-'0');
		ch=getchar();
	}
	return x*f;
}
void write(int x) {//快输
	if(x<0){
		putchar('-');
		write(-x);
		return;
	}
	if(x>=10)write(x/10);
	putchar(x%10+'0');
}
int main()
{
	x=read();
	cin>>a;//简单模拟
	n=read();
	while(n--){
	  cin>>a>>a;
	  b=read();
	  y+=b;
	}
	write(y+max(0,y-x));
	return 0;
}