#include<stdio.h>
main()
{
	char fin[100], fout[100];
	for(int i = 1 ; i <= 5 ; i++ )
	{
		sprintf(fin,".%d.in",i);
		sprintf(fout,".%d.out",i);
		freopen(fin,"r",stdin);
		freopen(fout,"w",stdout);
		long long int a, b;
		scanf("%lld%lld",&a,&b);
		printf("%lld\n",a+b);
		printf("%lld\n",a-b);
		printf("%lld\n",a*b);
		printf("%lld\n",a/b);
		printf("%.2lf\n",a/(double)b);

	}
}