CF55C. Pie or die

/*
 CF55C. Pie or die
 http://codeforces.com/problemset/problem/55/C
 博弈论 乱搞
 获胜条件是存在一个棋子到边界的值小于5
 */
#include <cstdio>
int main()
{
    int n,m,k;
    scanf("%d%d%d",&n,&m,&k);
    int x,y;
    int ans=0;
    while(k--)
    {
        scanf("%d%d",&x,&y);
        if(x>=n-4 || x<=5 || y>=m-4 || y<=5)
            ans=1;
    }
    if(ans)
        printf("YES
");
    else
        printf("NO
");
    return 0;
}