#import<atcoder/all>
int p=2e9,q,n,d=2e9,c,z;main(){for(scanf("%d",&n);~scanf("%d",&q);d=q-p,z=z>c?z:c,p=q)q-p-d?c=2:c++;printf("%d",n-1?z=z>c?z:c:1);}