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