#include <iostream>
using namespace std;
int main()
{
int r,c,n;
char a[101][101],b[101][101];
cin>>r>>c>>n;
for(int i=1;i<=r;i++)
for(int j=1;j<=c;j++)
cin>>a[i][j];
for(int d=1;d<=n;d++)
{
for(int i=1;i<=r;i++)
for(int j=1;j<=c;j++)
b[i][j]=a[i][j];
for(int i=1;i<=r;i++)
for(int j=1;j<=c;j++)
{
if(b[i][j]==\'R\'&&(b[i-1][j]==\'P\'||b[i+1][j]==\'P\'||b[i][j-1]==\'P\'||b[i][j+1]==\'P\'))
a[i][j]=\'P\';
else if(b[i][j]==\'S\'&&(b[i-1][j]==\'R\'||b[i+1][j]==\'R\'||b[i][j-1]==\'R\'||b[i][j+1]==\'R\'))
a[i][j]=\'R\';
else if(b[i][j]==\'P\'&&(b[i-1][j]==\'S\'||b[i+1][j]==\'S\'||b[i][j-1]==\'S\'||b[i][j+1]==\'S\'))
a[i][j]=\'S\';
}
}
for(int i=1;i<=r;i++)
{
for(int j=1;j<=c;j++)
cout<<a[i][j];
cout<<endl;
}
return 0;
}