import Foundation

func solution(_ word:String) -> Int {
    let dict: [Character: Int] = ["A": 0, "E": 1, "I": 2, "O": 3, "U": 4]
    var idx: Int = 5
    var ans: Int = 0
    
    for c in word {
        let w: Int = (Int(pow(Double(5), Double(idx))) - 1) / 4
        ans += w * dict[c, default: 0] + 1
        idx -= 1
    }
    
    return ans
}


let word: String = "AAAE"

print(solution(word))