let input = require('fs').readFileSync('/dev/stdin', 'utf8');
const [N, ...a] = input.split(/\s/).map(v => Number(v));
a.pop();
a.sort((a, b) => a - b);
console.log(Math.min(...a.map((v, i) => i == a.length - 1 ? Infinity : Math.abs(v - a[i + 1]))));
console.log(Math.abs(Math.max(...a)) + Math.abs(Math.min(...a)));