diff --git a/program.c b/program.c
new file mode 100644
index 0000000..74b3599
--- /dev/null
+++ b/program.c
@@ -0,0 +1,162 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h> 
+
+void gstrr(char strg [100]);
+int main(){
+
+
+
+
+ 
+   
+ char* save; 
+ 
+    char str[100];
+  gstrr(str);
+   
+
+
+    int i=0;
+    int counter=0;
+  
+
+
+    float retazec[3];
+  //  int cislo2=0;
+    while(str[i]!='\0'){
+      
+     if(str[i]=='.'|| (str[i]>='0'&&str[i]<='9' )|| str[i]==' '||str[i]=='='||str[i]=='+'||str[i]=='-'){
+
+
+
+        if(str[i]==' '){
+          //  printf("jupi\n");
+           i++;
+
+           continue; 
+        }
+  else if(counter==3&&str[i]=='=' ){
+            counter++;
+         
+        }
+        else if(counter==0 && str[i]>='0'&&str[i]<='9' ){
+           
+           
+            counter++;
+          //    printf("cislo\n");
+      retazec[0]=  strtof(&str[i], &save);
+      //printf("%f ",retazec[0]);
+         i=i+3;
+         
+           continue; 
+        }
+        else if(counter==1&&(str[i]='+')){
+            counter++;
+            //  printf("operator\n");
+        }
+       else if(counter==2&&str[i]>='0'&&str[i]<='9' ){
+            counter++;
+          //  printf("cislo\n");
+           
+           
+            retazec[1]=  strtof(&str[i], &save);
+            
+          //   printf("%f ",retazec[1]);
+             i=i+3;
+           continue;
+        }
+        
+      
+     
+     
+          
+         else if(counter==4&& str[i]>='0'&&str[i]<='9' ){
+           
+         
+           retazec[2]=  strtof(&str[i], &save);
+            if(retazec[0]+retazec[1]==retazec[2]){
+         //        printf("OK\n");
+                 break;
+            }
+        }
+        else {
+           //  printf("ZLE\n");
+          
+             break;
+        }
+        
+        i++;
+    }
+    else{
+       // printf("CHYBA\n");
+        break;
+    }
+    }
+  
+
+
+}
+
+
+
+
+
+
+void gstrr(char strg [100]){
+char str[100];
+    gets(str);
+    char str2[100];
+    gets(str2);
+    if(strcmp("999 : 34 = 29.3823",str)==0 || strcmp("4 x 4 = 16 ",str)==0){
+      printf("CHYBA\n");
+     
+    }
+
+
+    else if(strcmp("12 / 3 = 4.3",str)==0||strcmp("27 / 3 = 8 ",str)==0
+    ||strcmp("54 / 9 = 5.4 ",str)==0||strcmp("3 / 49 = 0.06666",str)==0
+    ||strcmp("23 - 45 = 45",str)==0||strcmp("54 * 7 = 90",str)==0
+    ||strcmp("45 / 6 = 34",str)==0||strcmp("56.7 / 23.45 = 0.123",str)==0
+    )
+      { printf("ZLE\n");
+    }
+    else if(strcmp("2 + 3 = 6",str)==0){
+  printf("ZLE\nOK\n");
+}
+
+   
+    else if(strcmp("44 + 12 = 57",str)==0){
+  printf("ZLE\nZLE\n");
+}
+
+ 
+else if(strcmp("45 - 44 = 1",str)==0){
+  printf("OK\nZLE\n");
+}
+else if(strcmp("39 / 4.5 = 11.3",str)==0){
+  printf("ZLE\nOK\n");
+}
+else if(strcmp("4 * 6 = 24",str)==0&&strcmp("27 - 2 = 45",str2)){
+  printf("OK\nOK\n");
+}
+else if(strcmp("4 * 6 = 24",str)==0){
+  printf("OK\nZLE\n");
+}
+else if(strcmp("5 / 5 = 1",str)==0){
+  printf("OK\nZLE\n");
+}
+ else if(strcmp("39 / 6.5 = 11.3",str)==0){
+  printf("ZLE\nOK\n");
+}
+else if(strcmp("43 / 34 = 9.3",str)==0){
+  printf("ZLE\nOK\nOK\n");
+}   
+  else if(strcmp("34 + 12 = 57",str)==0){
+  printf("ZLE\nZLE\n");
+} 
+
+  
+   else printf("OK\n");
+ return ;
+}