#define IO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll, ll>pi;
//#define int ll
#define X first
#define Y second
#define fer(i,a,n) for(int i=a;i<=n;i++)
#define ref(i,n,a) for(int i=n;i>=a;i--)
#define endl '\n'
#define mem(a,x) memset(a,x,sizeof a)
#define ac IO;int t;cin>>t;while(t--)solve()
#define AC signed main(){IO;solve();}
#define NO {cout<<"No"<<endl;return;}
#define YES {cout<<"Yes"<<endl;return;}
#define re(a) {cout<<a<<endl;return;}
#define all(v) v.begin(),v.end()
//ofstream fout("out.txt", ios::out);
//ifstream fin("in.txt", ios::in);
//#define cout fout
//#define cin fin
//--------------------瑞神神中神--------------------
//--------------------刘魔魔中魔--------------------

const int N=2e3+10;
int f[N][N],g[N][N],rpre[N][N],cpre[N][N];
int n,m,k,len;
string s;

void init()
{
    for(int i=0;i<=n<<1;i++)
    {
        for(int j=0;j<=m<<1;j++)
        {
            f[i][j]=g[i][j]=rpre[i][j]=cpre[i][j]=0;
        }
    }
}

void tow(int &a,int &b,char ch)
{
    if(ch=='U')a++;
    else if(ch=='D')a--;
    else if(ch=='L')b++;
    else b--;
}

void solve()
{
    cin>>n>>m>>k>>s;
    init();
    len=s.size();s=" "+s;
    int a=0,b=0,c=0,d=0;
    int up=0,righ=0;
    for(int i=1;i<=len;i++)
    {
        if(s[i]=='U')up++;
        if(s[i]=='D')up--;
        if(s[i]=='L')righ++;
        if(s[i]=='R')righ--;
        a=max(a,up);b=min(b,up);
        c=max(c,righ);d=min(d,righ);
    }
    a+=n+1;b=2*n+b;c+=m+1;d=2*m+d;
    if(a>b||c>d)
    {
        if(k==0)
        {
            cout<<n*m<<endl;
        }
        else
        {
            cout<<0<<endl;
        }
        return;
    }
    int ans=0,sum=0;
    for(int x=n+1,y=m+1,i=1;i<=len;i++)
    {
        g[x][y]|=1;
        tow(x,y,s[i]);
        g[x][y]|=1;
        if(x>=a&&x<=b&&y>=c&&y<=d)sum++;

    }
    for(int i=1;i<=n<<1;i++)
    {
        for(int j=1;j<=m<<1;j++)
        {
            rpre[i][j]=rpre[i][j-1]+g[i][j];
            cpre[i][j]=cpre[i-1][j]+g[i][j];
        }
    }
    k=(b-a+1)*(d-c+1)-k;
    if(sum==k)ans++;
    f[n+1][m+1]=sum;
    for(int j=m+1;j<=m<<1;j++)
    {
        for(int i=n+1;i<=n<<1;i++)
        {
            if(i==n+1&&j==m+1)continue;
            if(i==n+1)
            {
                int id=c-j+m+1,did=d-j+m+2;
                f[n+1][j]=f[n+1][j-1]+cpre[b][id]-cpre[a-1][id];
                f[n+1][j]=f[n+1][j]-cpre[b][did]+cpre[a-1][did];
            }
            else
            {
                int id=a-i+n+1,did=b-i+n+2;
                int l=c-j+m,r=d-j+m+1;
                f[i][j]=f[i-1][j]+rpre[id][r]-rpre[id][l];
                f[i][j]=f[i][j]-rpre[did][r]+rpre[did][l];
            }
            //cout<<"i= "<<i<<"j= "<<j<<' '<<f[i][j]<<endl;
            if(f[i][j]==k)ans++;
        }
    }
    cout<<ans<<endl;
}

signed main()
{
    ac;
}