#include<stdio.h>
int main()
{
int year,month,day;
int x,y,z,sum,week;
printf("Input Year,Month,Day(1900-2100):");
scanf("%d %d %d",&year,&month,&day);
if(year>=1900){
x=year-1900;
x=x*365+x/4;
switch(month){
case 1:y=0;break;
case 2:y=31;break;
case 3:y=59;break;
case 4:y=90;break;
case 5:y=120;break;
case 6:y=151;break;
case 7:y=181;break;
case 8:y=212;break;
case 9:y=243;break;
case 10:y=273;break;
case 11:y=304;break;
case 12:y=334;break;
}
z=day;
sum=x+y+z-1;
week=sum%7+1;
}else{
x=1900-year;
x=x*365+x/4;
switch(month){
case 1:y=0;break;
case 2:y=31;break;
case 3:y=59;break;
case 4:y=90;break;
case 5:y=120;break;
case 6:y=151;break;
case 7:y=181;break;
case 8:y=212;break;
case 9:y=243;break;
case 10:y=273;break;
case 11:y=304;break;
case 12:y=334;break;
}
z=day;
sum=x-y-z+1;
}
printf("%d",week);
return 0;
}