diff --git a/cv1/program.c b/cv1/program.c
index 938a137..dd495de 100644
--- a/cv1/program.c
+++ b/cv1/program.c
@@ -6,6 +6,7 @@ int main()
     char c;
     int counter=0;
     while ((c = getchar()) != EOF) {
+	    if (c >= 32 && c <= 126){
         if(c<='z'&&c>='a'){
             c=c+('A'-'a');
         }else if(c<='Z'&&c>='A'){
@@ -15,6 +16,7 @@ int main()
             counter++;
         }
         printf("%c",c);
+	    }
     }
     printf("\nLines count: %d\n",counter);
     return 0;