task 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class Task1
{
    static void Main()
    {
        StringBuilder input = new StringBuilder();
        input.Append(Console.ReadLine());
        StringBuilder result = new StringBuilder();
        while(input.Length > 0)
        {
            string[] letters = { "f", "bIN", "oBJEC", "mNTRAVL", "lPVKNQ", "pNWE", "hT" };
            switch(input[0])
            {
                case 'f': result.Append('0'); input.Remove(0, letters[0].Length); break;
                case 'b': result.Append('1'); input.Remove(0, letters[1].Length); break;
                case 'o': result.Append('2'); input.Remove(0, letters[2].Length); break;
                case 'm': result.Append('3'); input.Remove(0, letters[3].Length); break;
                case 'l': result.Append('4'); input.Remove(0, letters[4].Length); break;
                case 'p': result.Append('5'); input.Remove(0, letters[5].Length); break;
                case 'h': result.Append('6'); input.Remove(0, letters[6].Length); break;
            }
        }
        long print = 0;
        long power = 0;
        long step = 1;
        for (int i = result.Length-1; i >= 0; i--)
        {
            for (int g = 0; g < (result.Length - 1) -i; g++)
			{
                step *= 7;
			}
            print += step * (int)char.GetNumericValue(result[i]);
            step = 1;
        }
        Console.WriteLine(print);
    }
}