#include<stdio.h>
#include<stdlib.h>

int  main(){
    int n,m;
    scanf("%d%d", &n,&m);
    if(n<1||n>50||m>100||n>=m){
        printf("Invalid Input");
        return 0;
    }
    double* arr=(double*)calloc(n,sizeof(double));
    if(!arr){
        printf("Memory allocation failed");
        return 0;
    }
    double* temp=(double*)realloc(arr,m* sizeof(double));
    if(!temp){
        free(arr);
        printf("Memory allocation failed");
        return 0;
    }
    arr=temp;
    for(int i=0; i<m; i++){
        arr[i]=2.0;
    }
    for(int i=0; i<m; i++);
    printf("%.1f",arr[i]);
}
printf(" ");
free(arr);
return 0;
    
}