function solve (params) {
  let regex = /^([#$%*&]+)([A-Za-z]+)\1=(\d+)!!(.+)$/

  for (let param of params) {
    let match = param.match(regex)

    if (match) {
      let length = +match[3]
      if (length === match[4].length) {
        let decrypted = match[4]
          .split('')
          .map(x => String.fromCharCode(x.charCodeAt(0) + length))
          .join('')
        console.log(`Coordinates found! ${match[2]} -> ${decrypted}`)
        break
      } else {
        console.log(`Nothing found!`)
      }
    } else {
      console.log(`Nothing found!`)
    }
  }
}
solve([
  '%GiacomoAgostini%=7!!hbqw',
  '&GeoffDuke*=6!!vjh]zi',
  'JoeyDunlop=10!!lkd,rwazdr',
  'Mike??Hailwood=5!![pliu',
  '#SteveHislop#=16!!df%TU[Tj(h!!TT[S'
])