#include main()

{ int y,m,d,b,c,f,g;

scanf("%d %d %d",&y,&m,&d);

if((m>12)||(m<0))

printf("month is error.\n");

else if(((m==1)||(m==3)||(m==5)||(m==7)||(m==8)||(m==10)||(m==12))&&(d>31||d<=0))

printf("day is error.\n");

else if(((m==4)||(m==6)||(m==9)||(m==11))&&(d>30||d<=0))

printf("day is error.\n");

else if(((y%4==0&&y%100!=0||y%400==0))&&(m==2)&&(d>29||d<=0))

printf("day is error.\n");

else if((d>28||d<=0)&&(m==2))

printf("day is error.\n");

else

{c=(y-1901)/4;

b=c*366+(y-1901-c)*365;

if (y%4==0 && y%100!=0 || y%400==0)

switch (m)

{ case 1:f=d;break;

case 2:f=d+31;break;

case 3:f=d+31+29;break;

case 4:f=d+31+29+31;break;

case 5:f=d+31+29+31+30;break;

case 6:f=d+31+29+31+30+31;break;

case 7:f=d+31+29+31+30+31+30;break;

case 8:f=d+31+29+31+30+31+30+31;break;

case 9:f=d+31+29+31+30+31+30+31+31;break;

case 10:f=d+31+29+31+30+31+30+31+31+30;break;

case 11:f=d+31+29+31+30+31+30+31+31+30+31;break;

case 12:f=d+31+29+31+30+31+30+31+31+30+31+30;break;

}

else switch (m)

{ case 1:f=d;break;

case 2:f=d+31;break;

case 3:f=d+31+28;break;

case 4:f=d+31+28+31;break;

case 5:f=d+31+28+31+30;break;

case 6:f=d+31+28+31+30+31;break;

case 7:f=d+31+28+31+30+31+30;break;

case 8:f=d+31+28+31+30+31+30+31;break;

case 9:f=d+31+28+31+30+31+30+31+31;break;

case 10:f=d+31+28+31+30+31+30+31+31+30;break;

case 11:f=d+31+28+31+30+31+30+31+31+30+31;break;

case 12:f=d+31+28+31+30+31+30+31+31+30+31+30;break;

}

g=(b+f+1)%7;

printf("%d\n",g);}

}