#include<iostream>
#include<algorithm>
using namespace std;
const int N=100010;
typedef long long LL;
int c[N],s[N],row[N],col[N];
int n,m,T;
LL work(int n,int a[])
{
    
    for(int i=1;i<=n;i++)
    s[i]=s[i-1]+a[i];
    
    if(s[n]%n)
    return -1;
    
    int ave=s[n]/n;
    c[1]=0;
    
    for(int i=2;i<=n;i++)
    c[i]=s[i-1]-(i-1)*ave;
    
    sort(c+1,c+1+n);
    LL res=0;
    
    int center=(n+1)/2;     
    for(int i=1;i<=n;i++)
    res+=abs(c[i]-c[center]);
    return res;
}
int main()
{
    scanf("%d%d%d",&n,&m,&T);
    while(T--)
    {
        int x,y;
        scanf("%d%d",&x,&y);
        row[x]++;	
        col[y]++;	
    }
    LL row_num=work(n,row);		
    LL col_num=work(m,col);		
    
    if(row_num!=-1&&col_num!=-1)
    printf("both %lld\n",row_num+col_num);
    
    else if(row_num!=-1)
    printf("row %lld\n",row_num);
    
    else if(col_num!=-1)
    printf("column %lld\n",col_num);
    
    else
    puts("impossible");
    return 0;
}