#define RG register
#include<cstdio>
using namespace std;
const int N=50005;
int n,m,q,X,Ans;
int a[N][16];
inline int read()
{RG int x=0,w=1;RG char ch=getchar();while(ch<'0'||ch>'9'){if(ch=='-')w=-1;ch=getchar();}while(ch>='0'&&ch<='9')x=x*10+ch-'0',ch=getchar();return x*w;
}
struct segment{int sum[N<<2],lazy[N<<2],g[N<<2];inline void Pushup(int rt){sum[rt]=sum[rt<<1]+sum[rt<<1|1];}void Build(int rt,int l,int r,int k){if(l==r){sum[rt]=a[l][k]^1;g[rt]=a[l][k];return;}int mid=(l+r)>>1;Build(rt<<1,l,mid,k);Build(rt<<1|1,mid+1,r,k);Pushup(rt);g[rt]=g[rt<<1]+g[rt<<1|1];}inline void Pushdown(int rt,int s){//s即区间长度int t=lazy[rt];if(t==-1)return;if(!t){sum[rt<<1]=(s-(s>>1))-g[rt<<1];sum[rt<<1|1]=(s>>1)-g[rt<<1|1];}else{sum[rt<<1]=g[rt<<1];sum[rt<<1|1]=g[rt<<1|1];}lazy[rt<<1]=lazy[rt<<1|1]=t;lazy[rt]=-1;}void Modify(int rt,int l,int r,int ll,int rr){if(ll<=l&&r<=rr){if(X)sum[rt]=g[rt];else sum[rt]=r-l+1-g[rt];lazy[rt]=X;return;}Pushdown(rt,r-l+1);int mid=(l+r)>>1;if(ll<=mid)Modify(rt<<1,l,mid,ll,rr);if(rr>mid)Modify(rt<<1|1,mid+1,r,ll,rr);Pushup(rt);}
}T[16];
int main()
{n=read();m=read();q=read();RG char c;for(int i=1;i<=n;i++)for(int j=1;j<=m;j++){c=getchar();while(c!='0'&&c!='1')c=getchar();a[i][j]=c-'0';}for(int i=1;i<=m;i++)T[i].Build(1,1,n,i);RG int x1,x2,y1,y2;while(q--){x1=read();x2=read();y1=read();y2=read();X=read();for(int i=y1;i<=y2;i++)T[i].Modify(1,1,n,x1,x2);Ans=0;for(int i=1;i<=m;i++)Ans+=T[i].sum[1];printf("%d\n",Ans);}return 0;
}