let lines = []

const reader = require('readline').createInterface({
  input: process.stdin,
  output: process.stdout
})

reader.on('line', (line) => {
  lines.push(line)
})

reader.on('close', () => {
  let points = lines[1].split(' ')
  let sorted = points.sort((a, b) => {
    if (a < b) return -1
    if (a > b) return 1
    return 0
  })

  var minDistance = Infinity

  for (var i = 1; i < sorted.length; i ++) {
    Math.abs(sorted[i] - sorted[i - 1]) < minDistance ? minDistance = sorted[i] - sorted[i - 1] : false
  }

  console.log(minDistance)
  console.log(Math.abs(sorted[0] - sorted[sorted.length - 1]))
})