#include <stdio.h>
#include <stdlib.h>
int main(){
int stuNum=0;
int remainder=-1;
int weekNum=0;
printf("请输入学号(1420110001,142015000):\n");
scanf("%d",&stuNum);
if((stuNum>=142011001)&&(stuNum<=142015000)){
printf("请输入周数:\n");
scanf ("%d",&weekNum);
if((weekNum>=1)&&(weekNum<=20))
remainder=stuNum %10;
if(remainder%3==weekNum%3)
printf("学生%d在第%d周应该交作业吗?是\n");
}
else
printf("学生%d在第%d周应该交作业吗?否\n");
return 0;
}