#include<stdio.h>
 
main()
{
	int num1,num2;
	float num3,num4;
 
	printf("X 1:");
	scanf("%d",&num1);
	printf("X 2:");
	scanf("%d",&num2);
	printf("y 1:");
	scanf("%f",&num3);
	printf("y 2 :");
	scanf("%f",&num4);
 
	printf("\n---Calculate--\n");
	printf("%d + %d\n",num1,num2,num1+num2);
	printf("%.2f+%2.f\n",num3,num4,num3+num4);
	printf("%d-%d= %d\n",num1,num2,num1-num2);
	printf("%2.f-%2.f\n",num3,num4,num3-num4);
	printf("%d*%d= %d\n",num1,num2,num1*num2);
	printf("%.2f*%.2f\n",num3,num4,num3*num4);
	printf("%d / %d = %d\n",num1,num2||1,num1/(num2||1));
	printf("%.2f/%.2f=%.2f\n",num3,num4,num3 / (num4 + 0.000001f));
 
}

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