Okay so we're in 8th grade and we made it up THIS year (not 6th grade). You probably have heard of the Periodic Table of Elements. You see, all the elements have "symbols" such as carbon= C iron= Fe etc. and all the elements have an "atomic number" (number of element). So if you combine some of the symbols together they can form words. Such as helium (He) plus yttrium (Y). Atomic number for Helium is ONE and atomic number for YTTRIUM is 39. So its like saying "1+39" which equals "hey". (He + Y = HeY) you get it now?
now search up the periodic table of elements on google and find out what "33+16" equals.... (and my friend made it up not me, it can be weird as he made his user as "TheKingOf_33plus16"