using System;

namespace GoldPlacement
{
    class Program
    {
        static int Mod = 1000000007;
        
        static int GetGoldPlacements(string s)
        {
            int n = s.Length;
            int[] dp = new int[n + 1];
            dp[n] = 1;

            for (int i = n - 1; i >= 0; i--)
            {
                if (s[i] == 'o')
                {
                    dp[i] = dp[i + 1];
                }
                else if (s[i] == '=' || s[i] == '.')
                {
                    dp[i] = (2 * dp[i + 1]) % Mod;
                }
                else if (s[i] == '<' || s[i] == '>')
                {
                    int j = i + 1;
                    while (j < n && s[j] == '.')
                    {
                        j++;
                    }
                    dp[i] = dp[j];
                }
            }

            return dp[0];
        }

        static void Main(string[] args)
        {
            int t = Convert.ToInt32(Console.ReadLine());

            for (int i = 1; i <= t; i++)
            {
                string s = Console.ReadLine();
                int result = GetGoldPlacements(s);
                Console.WriteLine("Case #" + i + ": " + result);
            }
        }
    }
}