#include<stdio.h>
int i,j,k,mat[50][50],n,m,pat[50][50],s,v[30],ss,nn,Max;
int main()
{
    freopen("filip.in","r",stdin);
    freopen("filip.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=m;j++)
        {
            scanf("%d",&mat[i][j]);
            pat[i][j]=mat[i][j];
        }
    }
    nn=n;
	Max=n;
    printf("%d",Max);
    return 0;
}