#include<stdio.h>
#include<time.h>
#include<stdlib.h>
int main()
{
	srand((unsigned)time(NULL));
	int i,a,b,J,sum,s[10],T,x,y,g[i];
	for(i=1;i<=10;i++)
	{
		for(a=rand()%51,b=rand()%51;a+b>50||a+b<0||a-b<0;a=rand()%51,b=rand()%51)
	{
		;
	}
		J=rand()%2;  
		if(J==1)
		{
		printf("%d:%d+%d=",i,a,b);
		T=a+b;
		scanf("%d",&s[i]);
		for(x=0;x<=2;x++)
		{
		if(s[i]!=T)
		{
		printf("´ð°¸´íÎó£¬ÇëÖØÐÂÊäÈë:\n");
		g[i]=0;
        }
		else if(x==0)
		g[i]=10;
		else if(x==1)
	    g[i]=7;
		else if(x==2)
		g[i]=5;
		}
    }