class solition {
    solve(s) {
        let x="";
        for (i in s)
        if (i>='a' || i<='z'){
            x+=i
            i,j=0; x.length=-1;
        }
        for(i<=j){
            if (x[i]!=x[j]){
                return false
            }
            else (j+=1 j-=1){
                return true
            }
        }
    }
}