___mm______mm______zzzzzzzzzzzzzz_______iii____iii
___mm__nn__mm_____________zzz________iii____iii
___mm__.n.__mm___________zzz__________iii____iii
___mm______mm_________zzz____________iii____iii
___mm______mm_______zzz______________iii____iii
___mm______mm_____zzzzzzzzzzzzzz________iii____iii
