// テトロミノ認識〜 横へな 2012.10.6
// http://n...content-available-to-author-only...e.jp/hena/ord4tetroid/

// に対する答案。

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

namespace ord4tetroid
{
    static class Program
    {
        static string[] L = { "00011121", "00010210", "00102021", "02101112", "01112021", "00010212", "00011020", "00101112" };
        static string[] I = { "00010203", "00102030", };
        static string[] T = { "00101120", "01101112", "01101121", "00010211", };
        static string[] O = { "00011011", };
        static string[] S = { "00011112", "01101120", "01021011", "00101121", };

        static string solve(string points)
        {
            int[] array = Array.ConvertAll(points.Split(','), int.Parse);
            
            Array.Sort(array);

            // 左上に寄せる
            while (Array.TrueForAll(array, i => i % 10 >= 1)) array = Array.ConvertAll(array, i => i - 1);
            while (Array.TrueForAll(array, i => i >= 10)) array = Array.ConvertAll(array, i => i - 10);
            
            string inputStr = string.Join("", Array.ConvertAll(array, i => i.ToString("00")));
            if (Array.IndexOf(L, inputStr) != -1) return "L";
            if (Array.IndexOf(I, inputStr) != -1) return "I";
            if (Array.IndexOf(T, inputStr) != -1) return "T";
            if (Array.IndexOf(O, inputStr) != -1) return "O";
            if (Array.IndexOf(S, inputStr) != -1) return "S";
            return "-";
        }


        static void test(string input, string expected)
        {
            string result = solve(input);
            Console.WriteLine("input: {0} expected: {1} received: {2} Judge: {3}", input, expected, result, (expected == result ? "OK" : "NG"));
            if (result  != expected) throw new ApplicationException();
        }

        static void Main()
        {
            /*#1*/ test("55,55,55,55", "-");
            /*#2*/ test("07,17,06,05", "L");
            /*#3*/ test("21,41,31,40", "L");
            /*#4*/ test("62,74,73,72", "L");
            /*#5*/ test("84,94,74,75", "L");
            /*#6*/ test("48,49,57,47", "L");
            /*#7*/ test("69,89,79,68", "L");
            /*#8*/ test("90,82,91,92", "L");
            /*#9*/ test("13,23,03,24", "L");
            /*#10*/ test("24,22,25,23", "I");
            /*#11*/ test("51,41,21,31", "I");
            /*#12*/ test("64,63,62,65", "I");
            /*#13*/ test("49,69,59,79", "I");
            /*#14*/ test("12,10,21,11", "T");
            /*#15*/ test("89,99,79,88", "T");
            /*#16*/ test("32,41,43,42", "T");
            /*#17*/ test("27,16,36,26", "T");
            /*#18*/ test("68,57,58,67", "O");
            /*#19*/ test("72,62,61,71", "O");
            /*#20*/ test("25,24,15,14", "O");
            /*#21*/ test("43,54,53,42", "S");
            /*#22*/ test("95,86,76,85", "S");
            /*#23*/ test("72,73,84,83", "S");
            /*#24*/ test("42,33,32,23", "S");
            /*#25*/ test("66,57,67,58", "S");
            /*#26*/ test("63,73,52,62", "S");
            /*#27*/ test("76,68,77,67", "S");
            /*#28*/ test("12,11,22,01", "S");
            /*#29*/ test("05,26,06,25", "-");
            /*#30*/ test("03,11,13,01", "-");
            /*#31*/ test("11,20,00,21", "-");
            /*#32*/ test("84,95,94,86", "-");
            /*#33*/ test("36,56,45,35", "-");
            /*#34*/ test("41,33,32,43", "-");
            /*#35*/ test("75,94,84,95", "-");
            /*#36*/ test("27,39,28,37", "-");
            /*#37*/ test("45,34,54,35", "-");
            /*#38*/ test("24,36,35,26", "-");
            /*#39*/ test("27,27,27,27", "-");
            /*#40*/ test("55,44,44,45", "-");
            /*#41*/ test("70,73,71,71", "-");
            /*#42*/ test("67,37,47,47", "-");
            /*#43*/ test("43,45,41,42", "-");
            /*#44*/ test("87,57,97,67", "-");
            /*#45*/ test("49,45,46,48", "-");
            /*#46*/ test("63,63,52,72", "-");
            /*#47*/ test("84,86,84,95", "-");
            /*#48*/ test("61,60,62,73", "-");
            /*#49*/ test("59,79,69,48", "-");
            /*#50*/ test("55,57,77,75", "-");
        }
    }
}