0
0 z/m

těžší z, -

zzz z- --z - z- --z --- -- zzz - - --- z-- --- -zz --z zzz zz --- -- -- zzz --- z z- -z- --- -- -zz zzz z-- -z -zz zz z-z zz- zz- zzz - --z zzz z -z ---