#!/usr/bin/env ruby

kazu=[2,4,6]
kyoka=["算数","体育","理科","図工","家庭科","国語" ]

printf("%d\n",kazu[0])
printf("%s\n",kyoka[1])

srand
suzi=rand(3)
printf("%d\n",kazu[suzi])
benkyo=rand(6)
printf("%s\n",kyoka[benkyo])