diff --git a/du5/program.c b/du5/program.c
new file mode 100644
index 0000000..a454069
--- /dev/null
+++ b/du5/program.c
@@ -0,0 +1,94 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+
+struct LIS{
+ 
+char fname[100];
+char sname[100];
+int num;    
+};
+
+int keep(struct LIS *);
+int del(struct LIS *,int);
+void Sort_Struct(struct LIS *,int);
+void print(struct LIS *,int);
+
+
+int main(){
+struct LIS list[100];
+int count=keep(list);
+//printf("%d",count);
+int pult=del(list,count);
+//printf("%d",pult);
+Sort_Struct(list,count);
+print(list,count);
+    return 0;
+}
+
+int keep(struct LIS *list){
+char *array;
+int stop,count;
+int num;
+    for(int i=0; stop!=EOF; i++){
+        array=(char*)malloc(100);
+        stop =0;
+        for(int j=0;stop!='\n';j++){
+            stop=getchar();
+            if(stop==EOF) break;
+            array[j]=stop;
+    }
+    if(stop==EOF) break;
+    sscanf(array,"%d %s %s",&list[i].num,list[i].sname,list[i].fname);
+    count++;
+    free(array);
+    }
+    return count;
+}
+
+int del(struct LIS *list,int count){
+    for(int i=0;i<count-1;i++){
+        for(int j=i+1;j<count;j++){
+            if(strcmp(list[i].fname,list[j].fname)==0 && strcmp(list[i].sname,list[j].sname)==0 && list[j].num!=-1) {
+                count--;
+                list[i].num+=list[j].num;
+                list[j].num=-1;
+
+            }
+        }    
+    }
+    return count;
+}
+
+void Sort_Struct(struct LIS *list,int count){
+    struct LIS ilusion;
+    
+    for(int i=0;i<count;i++){
+        for(int j=i;j>1;j--){
+            if(strcmp(list[i].sname,list[j].sname)!=0){
+            for(int k=0;k<strlen(list[i].sname);k++){
+                if(list[i].sname[k]>list[j].sname[k]){
+                    ilusion=list[i];
+                    list[i]=list[j];
+                    list[j]=list[i];
+                }
+                }
+            }
+            
+        }
+    }
+}
+
+void print(struct LIS *list,int count){
+    printf("Vysledky:\n");
+    for(int i=0;i<count;i++){
+        if(list[i].num!=-1){
+        printf("%d %s %s\n",list[i].num, list[i].sname, list[i].fname);
+        }
+    }
+}
+
+
+