# include <stdio.h>
# define LESSONS 3
# define STUDENTS 2

double readLesson()
{
	double x;
	do
	{
		scanf("%lf",&x);
	}while(x<0 || x>10);
	return x;
}

/** Anagnosi kai emfanisi pinaka dyo distaseon**/
int main()
{
	double lesson[LESSONS][STUDENTS];
	int i,j;
	for(i=0;i<LESSONS;i++)
	{
		for(j=0;j<STUDENTS;j++)
		{
			printf("Doste bathmo gia to mathima %4d kai mathiti %4d \n",i,j);
			lesson[i][j]=readLesson();
		}
	}
	for(i=0;i<LESSONS;i++)
	{
		for(j=0;j<STUDENTS;j++)
		{
			printf("%7.2lf",lesson[i][j]);
		}
		printf("\n");
	}
	return 0;
}