diff --git a/du4/program.c b/du4/program.c
index fa37904..6218079 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -3,25 +3,25 @@
 #include <string.h>
 #include <ctype.h>
 
-int call(double A, double B, double C, char AC){
+int call(float A, float B, float C, char AC){
     if(AC=='/'&&B==0){
-        return printf("CHYBA\n");;
+        return printf("CHYBA");;
     }
     else if(AC=='+'){
-        if(A+B==C)return printf("OK\n");
-        return printf("ZLE\n");
+        if(A+B==C)return printf("OK");
+        return printf("ZLE");
     }
     else if(AC=='-'){
-        if(A-B==C)return printf("OK\n");
-        return printf("ZLE\n");
+        if(A-B==C)return printf("OK");
+        return printf("ZLE");
     }
     else if(AC=='*'){
-        if(A*B==C)return printf("OK\n");
-        return printf("ZLE\n");
+        if(A*B==C)return printf("OK");
+        return printf("ZLE");
     }
     else if(AC=='/'){
-        if(A/B==C)return printf("OK\n");
-        return printf("ZLE\n");
+        if(A/B==C)return printf("OK");
+        return printf("ZLE");
     }    
 }
 
@@ -31,7 +31,7 @@ int main()
 
 char *str;
 str=(char*)malloc(100);
-double a,b,c;
+float a,b,c;
 char ac,el;
 int ind=0;
 for(int i=0;el!='\n';i++){
@@ -42,9 +42,10 @@ for(int i=0;el!='\n';i++){
     str[ind]=el;
     ind++;
 }
+//3.4␣+␣2.3␣=␣5.7␣
 //scanf("%s",str);
-sscanf(str,"%lf%c%lf=%lf ",&a,&ac,&b,&c);
-//printf("%f %d %f =%f",a,ac,b,c);
+sscanf(str,"%f%c%f=%f ",&a,&ac,&b,&c);
+printf("%f %c %f =%f",a,ac,b,c);
 call(a,b,c,ac);
     return 0;
-}
\ No newline at end of file
+}