Hello APL! π
β³ 2 3
Avgβ{(+βΏβ΅)Γ·β’β΅}
Avg 1 6 3 4
{βΊ,β’β΅}βΈ'Mississippi'
throwsβ?10000β΄6
+/1=throws
+/(β³6)β.=throws