import core.bitop, std.algorithm, std.ascii, std.bigint, std.conv, std.math,
    std.functional, std.numeric, std.range, std.stdio, std.string, std.random,
    std.typecons, std.container, std.format;

// dfmt off
T lread(T = long)(){return readln.chomp.to!T();}
T[] aryread(T = long)(){return readln.split.to!(T[])();}
void scan(TList...)(ref TList Args){auto line = readln.split();
foreach (i, T; TList){T val = line[i].to!(T);Args[i] = val;}}
alias sread = () => readln.chomp();enum MOD = 10 ^^ 9 + 7;
// dfmt on

void main()
{
    long N, A, B;
    scan(N, A, B);
    auto S = sread();
    long cnt;
    long b;
    foreach (i, c; S)
    {
        switch (c)
        {
        case 'a':
            if (cnt < A + B)
            {
                cnt++;
                writeln("Yes");
            }
            else
                writeln("No");
            break;
        case 'b':
            if (cnt < A + B && b < B)
            {
                b++;
                cnt++;
                writeln("Yes");
            }
            else
                writeln("No");
            break;
        case 'c':
            writeln("No");
            break;
        default:
            break;
        }
    }
}
