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#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N=505;

char rev(char x) {
	if (x=='G') {
		return 'D';
	}
	if (x=='D') {
		return 'G';
	}
	if (x=='L') {
		return 'P';
	}
	if (x=='P') {
		return 'L';
	}
	return 0;
}
bool vis[N*N];
int n,m,k,a[N][N],b[N][N],p[N*N],x[N*N],y[N*N];
vector<char>opt;
void perform(char opt,int (*a)[N]) {
	if (opt=='L') {
		for (int i=1;i<=n;i++) {
			for (int j=1,k=1;j<=m;j++) {
				if (a[i][j]) {
					a[i][k++]=a[i][j];
					if (k<=j) {
						a[i][j]=0;
					}
				}
			}
		}
	}
	if (opt=='P') {
		for (int i=1;i<=n;i++) {
			for (int j=m,k=m;j>=1;j--) {
				if (a[i][j]) {
					a[i][k--]=a[i][j];
					if (k>=j) {
						a[i][j]=0;
					}
				}
			}
		}
	}
	if (opt=='G') {
		for (int j=1;j<=m;j++) {
			for (int i=1,k=1;i<=n;i++) {
				if (a[i][j]) {
					a[k++][j]=a[i][j];
					if (k<=i) {
						a[i][j]=0;
					}
				}
			}
		}
	}
	if (opt=='D') {
		for (int j=1;j<=m;j++) {
			for (int i=n,k=n;i>=1;i--) {
				if (a[i][j]) {
					a[k--][j]=a[i][j];
					if (k>=i) {
						a[i][j]=0;
					}
				}
			}
		}
	}
}

signed main() {
	ios::sync_with_stdio(false),cin.tie(0);
	cout.precision(10),cout.setf(ios::fixed);
	
	cin>>n>>m;
	for (int i=1;i<=n;i++) {
		string s;
		cin>>s;
		for (int j=1;j<=m;j++) {
			a[i][j]=s[j-1]=='.'?0:(s[j-1]=='B'?1:2);
		}
	}
	string s;
	cin>>k>>s;
	for (char i:s) {
		if (opt.empty()) {
			opt.emplace_back(i);
		} else if (opt.back()!=i) {
			if (i==rev(opt.back())) {
				opt.pop_back();
			}
			if (opt.size()>=1&&i==opt[(int)opt.size()-1]) {
				continue;
			}
			if (opt.size()>=2&&i==opt[(int)opt.size()-2]) {
				continue;
			}
			opt.emplace_back(i);
		}
	}/*
	for (char i:opt) {
		cerr<<i;
	}
	cerr<<endl;
		for (int i=1;i<=n;i++) {
			for (int j=1;j<=m;j++) {
				b[i][j]=a[i][j];
			}
		}
		for (char i:opt) {
			perform(i,b);
		}
		for (int i=1;i<=n;i++) {
			for (int j=1;j<=m;j++) {
				cout<<".BC"[b[i][j]];
				b[i][j]=0;
			}
			cout<<"\n";
		}*/
	if (opt.size()<6) {
		for (char i:opt) {
			perform(i,a);
		}
	} else {
		for (int i=0;i<2;i++) {
			perform(opt[i],a);
		}
		int cnt=0;
		for (int i=1;i<=n;i++) {
			for (int j=1;j<=m;j++) {
				if (a[i][j]) {
					b[i][j]=++cnt;
					x[cnt]=i,y[cnt]=j;
				}
			}
		}/*
		for (int i=1;i<=n;i++) {
			for (int j=1;j<=m;j++) {
				cout<<".BC"[a[i][j]];
			}
			cout<<"\n";
		}*/
		for (int i=2;i<6;i++) {
			perform(opt[i],b);
		}/*
		for (int i=1;i<=n;i++) {
			for (int j=1;j<=m;j++) {
				cout<<b[i][j]<<' ';
			}
			cout<<"\n";
		}*/
		cnt=0;
		for (int i=1;i<=n;i++) {
			for (int j=1;j<=m;j++) {
				if (a[i][j]) {
					p[b[i][j]]=++cnt;
				}
			}
		}
		int now=2,t=0;
		while (now+4<=(int)opt.size()) {
			now+=4;
			t++;
		}
		for (int i=1;i<=cnt;i++) {
			if (vis[i]) {
				continue;
			}
			vector<int>b,c;
			for (int j=i;!vis[j];j=p[j]) {
				vis[j]=1;
				b.emplace_back(j);
				c.emplace_back(a[x[p[j]]][y[p[j]]]);
			}
			for (int j=0;j<(int)b.size();j++) {
				int id=p[b[(j+t)%b.size()]];
				a[x[id]][y[id]]=c[j];
			}
		}
		while (now<(int)opt.size()) {
			perform(opt[now++],a);
		}
	}
	for (int i=1;i<=n;i++) {
		for (int j=1;j<=m;j++) {
			cout<<".BC"[a[i][j]];
		}
		cout<<"\n";
	}
	
	return 0;
}
/*
4 4
BBB.
C.CC
B.B.
CCBB
20
GPDDPPPGDPGLGDPPPLLP
*/