//#include "stdafx.h"//vc++6.0加上这一行.
#include "
stdio.h"
void main(void){
char x[12]={3,6,6,2,4,0,2,5,1,3,6,1},md[12]={31,28,31,30,31,30,31,31,30,31,30,31};
char w[][10]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};
int m,d;
while(1){
printf("Input month & day...\n");
scanf("%d%d",&m,&d);
if(0<m && m<13 && d>0 && d<=md[m-1]) break;
printf("Error! redo: ");
}
printf("Today is %s\n",w[(x[m-1]+d)%7]);
}