// Problem: J. Just Zeros
// Contest: Universal Cup - The 3rd Universal Cup. Stage 24: Poland
// URL: https://contest.ucup.ac/contest/1890/problem/9968
// Memory Limit: 1024 MB
// Time Limit: 1000 ms
// Genshin Impact launch
// ZYB TXDY
// 
// Powered by CP Editor (https://cpeditor.org)

//%^~
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
// #include <bits/stdc++.h>
#include <cstdio>
#include <cstring>
#include <string>
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <functional>
#include <limits>
#include <climits>
#include <bitset>
#include <cassert>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <random>
// #include "ext/pb_ds/assoc_container.hpp"
// #include "ext/pb_ds/tree_policy.hpp"
// #include "ext/pb_ds/priority_queue.hpp"
// #include <ext/rope>
// #define PBDS __gnu_pbds
// #include <bits/extc++.h>
#define MAXN 200005
#define eps 1e-10
#define foru(a, b, c) for (int a = (b); (a) <= (c); (a)++)
#define ford(a, b, c) for (int a = (b); (a) >= (c); (a)++)
#define uLL unsigned long long
#define LL long long
#define LXF int
#define RIN Cap1taLDebug::read()
#define RSIN Cap1taLDebug::rdstr()
#define RCIN Cap1taLDebug::rdchar()
#define HH printf("\n")
#define All(x) (x).begin(), (x).end()
#define fi first
#define se second
#define CA const auto&
using namespace std;
// const int RANDOM = time(0);
// template<class T1,class T2>
// class tr1::hash<pair<T1,T2>>{
// public:
	// size_t operator () (pair<T1,T2> x)const{
		// tr1::hash<T1> H1;
		// tr1::hash<T2> H2;
		// return H1(x.fi)^H2(x.se)^RANDOM;
	// }
// };
int ID;
class Cap1taLDebug{
	#ifdef LXF
	#define READTYPE LXF
	#else
	#define READTYPE int
	#endif
	#define DEBUGING
private:
	ostream& buf;
	#ifndef DEBUGING
	static char fbuf[1<<21],*p1,*p2;
	#define getchar() (Cap1taLDebug::p1==p2&&(p1=(p2=fbuf)+fread(fbuf,1,1<<21,stdin),p1==p2)?EOF:*p2++)
	#endif
public:
	Cap1taLDebug(ostream& out=cout):buf(out){}
	~Cap1taLDebug(){
		#ifdef DEBUGING
		buf.flush();
		#endif
	}
	static READTYPE read(){
		READTYPE x=0,w=1;char ch=0;
		while(!isdigit(ch)){
		if(ch=='-')	w=-1;
		ch=getchar();
		}
		while(isdigit(ch))	x=x*10+(ch^48),ch=getchar();
		return x*w;
	}
	static string rdstr(){
		string s;char c=getchar();
		while(c==' ' || c=='\r' || c=='\n')	c=getchar();	
		while(c!=' ' && c!='\r' && c!='\n' && c!=EOF)	s+=c,c=getchar();
		return s;
	}
	static char rdchar(){
		char c=getchar();
		while(c==' ' || c=='\r' || c=='\n')	c=getchar();
		return c;
	}
	static string int128ToString(__int128 x){
		if(x==0)	return "0";
		string s="",w="";
		if(x<0)	w="-",x*=-1;
		while(x) s+=(char)('0'+(int)(x%10)),x/=10;
		reverse(All(s));
		return w+s;
	}
	Cap1taLDebug& operator<<(const string val){
		#ifdef DEBUGING
		buf<<val;
		#endif
		return *this;
	}
	template<typename T1,typename T2>
	Cap1taLDebug& operator<<(const pair<T1,T2>& val){
		#ifdef DEBUGING
		(*this)<<"("<<val.first<<","<<val.second<<")";
		#endif
		return *this;
	}
	template<typename T,template<typename,typename...>class Container,typename...Args>
	Cap1taLDebug& operator<<(const Container<T, Args...>& container){
		#ifdef DEBUGING
		buf<<"{";
		bool fst=0;
		for(const auto& val:container){
			if(!fst)	fst=true;
			else	buf<<",";
			(*this)<<val;	
		}
		buf<<"}";
		#endif
		return *this;
	}
	Cap1taLDebug& operator<<(const __int128& val){
		#ifdef DEBUGING
		buf<<int128ToString(val);
		#endif
		return *this;
	}
	template<typename T>
	Cap1taLDebug& operator<<(const T& val){
		#ifdef DEBUGING
		buf<<val;
		#endif
		return *this;
	}
	Cap1taLDebug& operator<<(ostream& (*manip)(ostream&)){
		#ifdef DEBUGING
		buf<<manip;
		#endif
		return *this;
	}
};
#ifndef DEBUGING
char Cap1taLDebug::fbuf[1<<21],*Cap1taLDebug::p1=nullptr,*Cap1taLDebug::p2=nullptr;
#endif
Cap1taLDebug cein(cout);
// Cap1taLDebug cein(cerr);
ostream& operator<<(ostream& os,__int128 val){
	os<<Cap1taLDebug::int128ToString(val);
	return os;
}
template<typename T>
class Stack : public stack<T>{
public:
	void clear(){
		while(!this->empty())	this->pop();
	}
	void popuntil(const function<bool(T)>& func){
		while(!this->empty() && !func(this->top()))	this->pop();
	}
};
/*

*/
int n,m,q;
string s;
bitset<10> a[100005];
vector<int> ans[260];
bool rev[10];
void solve(bool SPE){ 
	n=RIN,m=RIN,q=RIN;
	foru(i,0,n-1){
		s=RSIN;
		foru(j,1,m){
			a[j][i]=s[j-1]=='1';
		}
	}
	
	
	for(int i=0;i<(1<<n);i++){
		ans[i].resize(100005,0);
		foru(j,1,m){
			int cnt=0;
			foru(k,0,n-1){
				if(((i>>k)&1)!=a[j][k]){
					cnt++;
				}
			}
			ans[i][j]=min(cnt,1+n-cnt);
			ans[i][0]+=min(cnt,1+n-cnt);
		}
	}
	auto genAns=[&]()->int{
		int ret=INT_MAX;
		for(int i=0;i<(1<<n);i++){
			ret=min(ret,ans[i][0]+__builtin_popcount(i));
		}
		return ret;
	};
	
	printf("%d\n",genAns());
	
	foru(o,1,q){
		char opt=RCIN;
		if(opt=='P'){
			int x=RIN-1,y=RIN;
			a[y][x]=!a[y][x];
			for(int i=0;i<(1<<n);i++){
				int j=y;
				ans[i][0]-=ans[i][j];
				int cnt=0;
				foru(k,0,n-1){
					if(((i>>k)&1)!=(rev[k]^a[j][k])){
						cnt++;
					}
				}
				ans[i][j]=min(cnt,1+n-cnt);
				ans[i][0]+=min(cnt,1+n-cnt);
			}
		}else if(opt=='R'){
			int x=RIN-1;
			rev[x]^=1;
			for(int i=0;i<(1<<n);i++){
				if((i>>x)&1){
					swap(ans[i],ans[i^(1<<x)]);
				}
			}
		}else{
			int y=RIN;
			foru(i,0,n-1){
				a[y][i]=!a[y][i];
			}
			for(int i=0;i<(1<<n);i++){
				int j=y;
				ans[i][0]-=ans[i][j];
				int cnt=0;
				foru(k,0,n-1){
					if(((i>>k)&1)!=(rev[k]^a[j][k])){
						cnt++;
					}
				}
				ans[i][j]=min(cnt,1+n-cnt);
				ans[i][0]+=min(cnt,1+n-cnt);
			}
		}
		printf("%d\n",genAns());
		// break;
	}
	
	#ifdef DEBUGING
	if(SPE){
		
	}
	#endif
	return ;
}
/*
检查文件读写
检查多测清空
检查数组大小
*/
signed main()
{
	// #define RFILE
	// #define MULTITEST
	// #define TESTCASEID
	
	#ifdef RFILE
	freopen(".in","r",stdin);
	freopen(".out","w",stdout);
	#endif
	
	#ifdef MULTITEST
	int T=RIN;
	#else
	int T=1;
	#endif
	
	#ifdef TESTCASEID
	ID=RIN;
	#endif
	
	for(int i=1;i<=T;i++) solve(i==0);
	return 0;
}