package main import ( "bufio" "fmt" "io" "math" "os" "sort" "strconv" ) var iost *Iost type Iost struct { Scanner *bufio.Scanner Writer *bufio.Writer } func NewIost(fp io.Reader, wfp io.Writer) *Iost { const BufSize = 2000005 scanner := bufio.NewScanner(fp) scanner.Split(bufio.ScanWords) scanner.Buffer(make([]byte, BufSize), BufSize) return &Iost{Scanner: scanner, Writer: bufio.NewWriter(wfp)} } func (i *Iost) Text() string { if !i.Scanner.Scan() { panic("scan failed") } return i.Scanner.Text() } func (i *Iost) Atoi(s string) int { x, _ := strconv.Atoi(s); return x } func (i *Iost) GetNextInt() int { return i.Atoi(i.Text()) } func (i *Iost) Atoi64(s string) int64 { x, _ := strconv.ParseInt(s, 10, 64); return x } func (i *Iost) GetNextInt64() int64 { return i.Atoi64(i.Text()) } func (i *Iost) Atof64(s string) float64 { x, _ := strconv.ParseFloat(s, 64); return x } func (i *Iost) GetNextFloat64() float64 { return i.Atof64(i.Text()) } func (i *Iost) Print(x ...interface{}) { fmt.Fprint(i.Writer, x...) } func (i *Iost) Printf(s string, x ...interface{}) { fmt.Fprintf(i.Writer, s, x...) } func (i *Iost) Println(x ...interface{}) { fmt.Fprintln(i.Writer, x...) } func isLocal() bool { return os.Getenv("NICKEL") == "BACK" } func main() { fp := os.Stdin wfp := os.Stdout if isLocal() { fp, _ = os.Open(os.Getenv("WELL_EVERYBODY_LIES_TOO_MUCH")) } iost = NewIost(fp, wfp) defer func() { iost.Writer.Flush() }() solve() } func solve() { t := iost.GetNextInt() for i := 0; i < t; i++ { testcase() } } func testcase() { k := iost.GetNextInt() more := sort.Search(math.MaxInt64, func(x int) bool { return f(x) >= k }) iost.Println(more) } func f(x int) int { if x < 100 { return 0 } ans := 0 xx := make([]int, 0) for x > 0 { xx = append(xx, x%10) x /= 10 } l := 0 n := len(xx) r := n - 1 for l < r { xx[l], xx[r] = xx[r], xx[l] l++ r-- } dp := make([][2][10][10]int, n+1) dp[n][0][0][0] = 1 for i := n - 1; i >= 0; i-- { used := n - 1 - i for j := 0; j < 2; j++ { for k := 0; k < 10; k++ { for l := 0; l < 10; l++ { for m := 0; m < 10; m++ { tj := 0 if xx[i]-j < m { tj = 1 } if used >= 2 && !g(m, k, l) { continue } dp[i][tj][m][k] += dp[i+1][j][k][l] if m == 0 || used < 2 { continue } if i > 0 || tj == 0 { ans += dp[i+1][j][k][l] } } } } } } return ans } func g(a, b, c int) bool { return a != b && b != c && a != c && ((a < b && b > c) || (a > b && b < c)) }