#10WA了，不知道哪里错了，求调

//#10WA
#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
	char now,last;
	int n,a,b,ans=0;
	bool ay=1,by=1; //a可填充，b可填充
	cin>>n>>a>>b;
	for(int i=0;i<n;i++)
	{
		cin>>now;
		if(last=='A') ay=0;
		else if(last=='B') by=0;
		else if(last=='.' || last=='*') ay=1,by=1;
		if(a<=0) ay=0;
		if(b<=0) by=0;
		if(now=='.')
		{
			if(ay && !by) a--,ans++,  ay=0,by=1,  now='A'; //填A
			else if(by && !ay) b--,ans++,  by=0,ay=1,  now='B'; //填B
			else if(ay && by)
			{
				if(a>b) a--,ans++,  ay=0,by=1,  now='A'; //填A
				else if(b>a) b--,ans++,  by=0,ay=1,  now='B'; //填B
				else a--,ans++,  ay=0,by=1,  now='A'; //相同时不重要
			}
		}
		last=now;
		cout<<now<<" "<<last<<" "<<ay<<" "<<by<<" "<<a<<" "<<b<<" "<<ans<<endl;
	}
	cout<<ans;
	return 0;
}