diff --git a/es02/ex1.py b/es02/ex1.py
index 17d625e..721d878 100644
--- a/es02/ex1.py
+++ b/es02/ex1.py
@@ -15,10 +15,10 @@ def __init__(self, rows, cols, row_desc, col_desc):
         self.col_desc = col_desc     # Cols description
         self.nono = np.zeros((rows, cols), dtype=np.int8)      # A board matrix
 
-        # self.row = [[] for _ in range(rows)]
-        # self.col = [[] for _ in range(cols)]
+        # Cache row / cols arragement cache[0] - rows, cache[1] - cols
+        self.cache = [[], []] 
 
-        self.MAXITER = 5000      # Max. number of iterations of solve()
+        self.MAXITER = 20000      # Max. number of iterations of solve()
 
     def __str__(self):
         return '\n'.join([''.join(["#" if v == 1 else "." for v in row])
@@ -27,7 +27,7 @@ def __str__(self):
     def __repr__(self):
         return self.__str__()
 
-    @lru_cache(maxsize=2**20)
+    # @lru_cache(maxsize=2**20)
     def genPossibleRows(self, row_desc, row_len):
 
         row_desc = list(row_desc)
@@ -110,6 +110,17 @@ def presolve(self):
         self.presolve_row()
         self.transpose()
         
+    def presolveCache(self):
+        """ 
+        For each row (cache[0]) and col (chache[1]) description retrun cache 
+        list of possible row (cols) arrangement
+        """
+        self.cache[0] = [self.genPossibleRows(row, self.c) 
+                            for row in self.row_desc]
+        
+        self.cache[1] = [self.genPossibleRows(col, self.r)
+                            for col in self.col_desc]
+                    
 
     def badRows(self):
         """
@@ -175,8 +186,8 @@ def solve(self):
             self.nono[rowno][colno] = (1 if self.nono[rowno][colno] == 0
                                        else 0)
             
-        # print("dupa")
-        # print(self)
+        print(self)
+            # input()
         self.solve()
         
 
@@ -185,37 +196,31 @@ def solve(self):
     finput = 'zad_input.txt'
     foutput = 'zad_output.txt'
 
-    # finput = 'data/ex01.tst'
-
-    
+    finput = 'data/zad1_input.tst'
+   
 
     lines = []
     with open(finput) as f:
         for line in f:
             lines.append(list(map(int, line.strip('\n').split())))
+
     r = lines[0][0]
     c = lines[0][1]
 
     nono = Nonogram(r, c, row_desc=lines[1:r+1], col_desc=lines[r+1:])
 
-    # nono.info()
-    # nono.presolve()
-    # print(nono)
-
-    # nono = Nonogram(2, 5, [[3], [0]], [[], [], [], [2], []])
-    # nono.info()
-    # print(nono)
-    # nono.presolve()
+    nono.info()
 
-    nono.presolve()
-    nono.solve()
+    print("prechaching...")
+    nono.presolveCache()
+    print("dine")
 
-    fout = open(foutput, "w")
-    print(nono, file=fout)
-
-    # x = nono.genPossibleRows([1, 1, 2], 7)
-    # print(x)
+    # for r in nono.cache:
+    #     print(r)
+    #     print("----")
+    # nono.presolve()
+    # nono.solve()
 
-    # x = nono.genPossibleRowsPerm([1], 5)
-    # print(x)
 
+    # fout = open(foutput, "w")
+    # print(nono, file=fout)
diff --git a/es02/validator.py b/es02/validator.py
index 2f482a5..bf38466 100644
--- a/es02/validator.py
+++ b/es02/validator.py
@@ -21,6 +21,10 @@
 6. Wymuszenie użycia STDIN/STDOUT do komunikacji:
   `python validator.py --stdio zad1 python rozwiazanie.py`
 
+7. Ustawienie mnożnika dla limitów czasowych:
+  `python validator.py --timeout-multiplier 2.5 zad1 python rozwiazanie.py`
+
+
 '''
 
 from __future__ import absolute_import
@@ -28,15 +32,17 @@
 from __future__ import unicode_literals
 
 import argparse
-import numpy as np
 import os
 import signal
 import subprocess
 import sys
 import threading
-import yaml
 import time
-from adodbapi.process_connect_string import process
+
+import numpy as np
+
+import yaml
+
 
 VERBOSE = False
 
@@ -965,7 +971,8 @@
         #####        SS      #
         #S                   #
         ######################
-        Length= 28
+      out: 28
+    - inp: |
         ######################
         #        # SS##    G #
         #        # SS##      #
@@ -1420,9 +1427,10 @@ def kill_proc(process):
             os.killpg(os.getpgid(process.pid), signal.SIGTERM)
 
 
-def run_and_score_case(program, defaults, case_def, validator):
+def run_and_score_case(program, defaults, case_def, validator, timeout_multiplier):
     opts = dict(defaults)
     opts.update(case_def)
+    opts['timeout'] *= timeout_multiplier
     process_out, elapsed_time = run_case(program, **opts)
     if VERBOSE:
         print("Got output:")
@@ -1519,6 +1527,9 @@ def get_argparser():
     parser.add_argument(
         '--show_example', default=False, action='store_true',
         help='Print a sample input/output pair.')
+    parser.add_argument(
+        '--timeout-multiplier', '-tm',
+        help='Multiply timeout by provided amount, e.g. 2.13')
     parser.add_argument(
         '--verbose', default=False, action='store_true',
         help='Print more information about solutions.')
@@ -1590,11 +1601,12 @@ def get_cases(problem_def, cases):
     for case_num, case_def in problem_cases:
         print('Running case %d... ' % (case_num,), end='')
         try:
+            timeout_multiplier = float(args.timeout_multiplier) if args.timeout_multiplier and float(args.timeout_multiplier) > 1 else 1
             if args.stdio:
                 case_def['input_file'] = '<stdin>'
                 case_def['output_file'] = '<stdout>'
             case_meas = run_and_score_case(
-                program, problem_def['defaults'], case_def, problem_validator)
+                program, problem_def['defaults'], case_def, problem_validator, timeout_multiplier)
             ok_cases.append((case_num, case_meas))
             print('OK!')
         except ValidatorException as e:
@@ -1618,9 +1630,12 @@ def get_cases(problem_def, cases):
         misc_opts = ''
         if args.verbose:
             misc_opts = ' --verbose'
+        if args.timeout_multiplier:
+            misc_opts += ' --timeout-multiplier ' + args.timeout_multiplier
         if args.testset:
             misc_opts = '%s --testset %s' % (
                 misc_opts, shellquote(args.testset),)
         cases_opt = '--cases ' + ','.join([str(fc) for fc in failed_cases])
         print('python validator.py%s %s %s %s' %
               (misc_opts, cases_opt, args.problem, program))
+