#include <stdio.h>
#include <string.h>

int main() {
    int a[10] = {0};
    int m = 0;

    for(int i=0;i<6;i++){
        scanf("%d",&a[i]);
    }
    printf("The input no are: ");
    for(int i=0;i<6;i++){
        printf("%d ",a[i]);
    }
    
    for(int i=0;i<6;i++){
        for(int j=i+1;j<6;j++){
            if(a[i]==a[j]){
                for(int k=j;k<5;k++){//to skip the perticuler elment of repeating
                    a[k]=a[k+1];//we need to use k=j
                }
                a[5]=0; // Set last element to zero
                m++;
            }
        }
    }
    
    printf("\nTotal repeating elements are: %d",m);
    printf("\nThe output no are: ");
    for(int i=0;i<6-m+1;i++){
        printf("%d ",a[i]);
    }
}