diff --git a/rudict/rudict/grammarCase.cpp b/rudict/rudict/grammarCase.cpp
index e5208fb..fcb8ecd 100644
--- a/rudict/rudict/grammarCase.cpp
+++ b/rudict/rudict/grammarCase.cpp
@@ -83,9 +83,9 @@ NounGrammaticalCase WStringToNounGrammaticalCase(std::wstring str)
 
 
 
-bool charIsConsolant(wchar_t c) //except י
+bool charIsConsolant(wchar_t c) //except й
 {
-	std::wstring consolants = L"צךםדרשחץפגןנכהזקסלעב";
+	std::wstring consolants = L"цкнгшщзхфвпрлджчсмтб";
 
 	for (wchar_t ic : consolants)
 	{
@@ -100,7 +100,7 @@ bool charIsConsolant(wchar_t c) //except י
 
 bool charIsVowel(wchar_t c)
 {
-	std::wstring vovels = L"אמף‎¸‏טו";
+	std::wstring vovels = L"аоуыэяёюие";
 
 	for (wchar_t ic : vovels)
 	{
@@ -114,8 +114,8 @@ bool charIsVowel(wchar_t c)
 }
 
 
-std::wstring i_form_consolants = L"דץךזרקש";
-std::wstring u_form_consolants = L"בןהעגפחסםלכנצ";
+std::wstring i_form_consolants = L"гхкжшчщ";
+std::wstring u_form_consolants = L"бпдтвфзснмлрц";
 
 bool charIsIFormConsolant(wchar_t c)
 {