diff --git a/sapfor/experts/Sapfor_2017/_src/Transformations/set_implicit_none.cpp b/sapfor/experts/Sapfor_2017/_src/Transformations/set_implicit_none.cpp
index bb7928d..eb01b85 100644
--- a/sapfor/experts/Sapfor_2017/_src/Transformations/set_implicit_none.cpp
+++ b/sapfor/experts/Sapfor_2017/_src/Transformations/set_implicit_none.cpp
@@ -16,6 +16,7 @@ using std::string;
 using std::to_string;
 
 map<char, SgType*> types;
+vector<SgSymbol*> allVars;
 vector<SgSymbol*> varsWithoutDecl;
 const char commonIntLetters[6] = {'i', 'j', 'k', 'm', 'n', 'l'};
 
@@ -23,15 +24,6 @@ void InitTypes();
 void FillCommonTypes();
 void GetImplicitTypes(SgExpression* expr);
 
-static inline string getContains(SgStatement* funcSt)
-{
-	string containsName;
-	SgStatement* st_cp = funcSt->controlParent();
-	if (st_cp->variant() == PROC_HEDR || st_cp->variant() == PROG_HEDR || st_cp->variant() == FUNC_HEDR)
-		containsName = st_cp->symbol()->identifier() + std::string(".");
-	return containsName;
-}
-
 void ImplicitCheck(SgFile* file) {
 
 	auto implicitNoneDeclaration = new SgStatement(IMPL_DECL);
@@ -49,6 +41,7 @@ void ImplicitCheck(SgFile* file) {
 						SgType* type = implicitSt->implicitType(j);
 						SgExpression* letters = implicitSt->implicitRangeList(j);
 
+						// get real letters
 						types['a'] = type;  
 						printf("%s\n", letters->unparse());
 					}
@@ -63,6 +56,18 @@ void ImplicitCheck(SgFile* file) {
 		}
 	}
 
+	//  get all vars
+
+	for each (auto var in allVars)
+	{
+		SgStatement* declaredIn = declaratedInStmt(var);
+		if (declaredIn == NULL) {
+			varsWithoutDecl.push_back(var);
+		}
+	}
+
+	// create decl
+	// delete implicit
 
 	if (!hasImplicitNone) {
 		auto firstRealStatementOfFile = file->firstStatement()->lexNext()->lexNext();