pești fluture= 123
pești clovn=2x pești beta
scalari= pești clovn+pești beta-23
peste fluture+ peste clovn+peste beta+scalari= 905
123+ 2x peste beta+ peste beta+ peste beta+peste beta-23=905
5x peste beta= 905-123+23
5xpeste beta= 805
peste beta= 161
peste clovn= 161x2=322
scalari= 322+161-23= 483-23=460