import Foundation

func solution(_ babbling:[String]) -> Int {
    let possible: [String: Int] = ["aya": 3, "ye": 2, "woo": 3, "ma": 2]
    var ans: Int = 0
    
    for str in babbling {
        var cnt: Int = str.count
        
        for key in possible.keys {
            if str.contains(key) {
                cnt -= possible[key, default: 0]
            }
        }
        
        if cnt == 0 {
            ans += 1
        }
    }
    
    return ans
}

let babbling: [String] = ["aya", "yee", "u", "maa", "wyeoo"]
print(solution(babbling))