// JavaScript's continuation character is the backslash (\)
let revdate = new Date(2026, 2, 17);

const elements_string =
"hydrogen helium lithium beryllium boron carbon nitrogen oxygen fluorine \
neon sodium magnesium aluminum silicon phosphorous sulfur chlorine argon \
potassium calcium scandium titanium vanadium chromium manganese iron cobalt \
nickel copper zinc gallium germanium arsenic selenium bromine krypton rubidium \
strontium yttrium zirconium niobium molybdenum technetium ruthenium rhodium \
palladium silver cadmium indium tin antimony tellurium iodine xenon cesium \
barium lanthanum cerium praseodymium neodymium promethium samarium europium \
gadolinium terbium dysprosium holmium erbium thulium ytterbium lutetium hafnium \
tantalum tungsten rhenium osmium iridium platinum gold mercury thallium lead \
bismuth polonium astatine radon francium radium actinium thorium protactinium \
uranium neptunium plutonium americium curium berkelium californium einsteinium \
fermium mendelevium nobelium lawrencium rutherfordium dubnium seaborgium \
bohrium hassium meitnerium darmstadtium roentgenium copernicium nihonium \
flerovium moscovium livermorium tennessine oganesson";

const elements_array = elements_string.split(" ");
console.log(`Last revision date: ${revdate}`);
console.log(`Number of elements: ${elements_array.length}`);
console.log(`Last element: ${elements_array.at(-1)}`);