#include<cstdio>#include<cstring>const int dx[]={0,1,0,-1};const int dy[]={1,0,-1,0};int T,r,c,n;char a[110][110],b[110][110];int main(){int flag=0;scanf("%d",&T);while(T--){scanf("%d%d%d",&r,&c,&n);for(int i=1;i<=r;i++)scanf("%s",a[i]+1);memcpy(b,a,sizeof a);while(n--){for(int i=1;i<=r;i++)for(int j=1;j<=c;j++)for(int k=0;k<4;k++){int stax=i+dx[k],stay=j+dy[k];if(stax<1||stax>r||stay<1||stay>c) continue;if(a[i][j]=='R'&&a[stax][stay]=='S') b[stax][stay]='R';else if(a[i][j]=='S'&&a[stax][stay]=='P') b[stax][stay]='S';else if(a[i][j]=='P'&&a[stax][stay]=='R') b[stax][stay]='P';}memcpy(a,b,sizeof a);}if(flag) printf("n");for(int i=1;i<=r;i++)printf("%sn",a[i]+1);flag=1;}return 0;}
