one martian boy call Zorg want present string bead friend Earth Masha he know Masha like colour blue red right shop come variety adornment bead colour all string bead small fastener unfasten notice string bead shop length because peculiarity martian eyesight Zorg see blueandre string bead red bead instead blue one blue instead red regard string bead identical in word Zorg regard identical string bead derive string turnover derive mutual replacement colours andor string turnoverit know Martians orderly Martian see object try good order Zorg think red bead small blue Lets 0 red bead 1 blue from string Martian put early string red bead ith position provide second string blue bead ith position bead i1 identicalAt Zorg unfasten string bead put small heap heap string identical opinion then sort heap choose minimum string heap opinion he give unnecassary string shop assistant say do not need then Zorg sort remain string bead buy stre index k all manupulation Zorg lot time that s ask help find string bead Masha