50pts球条！玄关

#include <bits/stdc++.h>
using namespace std;

int sum;

int main()
{
string a,b;
    char x;
    x='a';
int n,m;cin>>n>>m;
cin>>a>>b;
for(int i=0;i<=n;i++)
{
    if(b[i]=='#') sum++;
}

int k=sum/26;
for(int i=0;i<=n;i++)
{
    if(a[i]=='#')
    {
        if(k>=1) 
        {
                a[i]='a';
                k--;
                continue;
        }
        else
        {
            a[i]=x;
        x=x+1;
        }

    }
}   
    for(int i=0;i<=n;i++) cout<<a[i];
    return 0;
}