#include<stdio.h>
#include<stdlib.h>
void nhap(double **arr,int dong,int cot)
{
    for(int i=0;i<dong;i++)
    {
        for(int j=0;j<cot;j++)
        {
            scanf("%lf",*(arr+i)+j);
        }
    }
}
void tong(double **arr1,double **arr2,int dong,int cot)
{
     double **arr3=(double **)calloc(dong,sizeof(double*));
    for(int i=0;i<dong;i++)
    {
        *(arr3+i)=(double *)calloc(cot,sizeof(double));
    }
    for(int i=0;i<dong;i++)
    {
        for(int j=0;j<cot;j++)
        {
            arr3[i][j]=arr1[i][j]+arr2[i][j];
        }
    }
    for(int i=0;i<dong;i++)
    {
        for(int j=0;j<cot;j++)
        {
            printf("%.2lf ",arr3[i][j]);
        }
        printf("\n");
    }
}
int main()
{
    int dong,cot;
    scanf("%d%d",&dong,&cot);
    double **arr1=(double **)calloc(dong,sizeof(double*));
    for(int i=0;i<dong;i++)
    {
        *(arr1+i)=(double *)calloc(cot,sizeof(double));
    }
    nhap(arr1,dong,cot);
     double **arr2=(double **)calloc(dong,sizeof(double*));
    for(int i=0;i<dong;i++)
    {
        *(arr2+i)=(double *)calloc(cot,sizeof(double));
    }
    nhap(arr2,dong,cot);
    tong(arr1,arr2,dong,cot);

}