#include<stdio.h>
int main(void){
  printf("201883300066");
  return 0;        
} 

#include<stdio.h>
int product(int,int);
int main(void) {
    int x,y,s;
    scanf("%d%d",&x,&y);
    s=product(x,y);
    printf("The mul is:%d",s);
    return 0;
}
int product(int a,int b){
    int mul;
    mul=a*b;
    return mul;
}

#include<stdio.h>
int main(void){
    int a=5,b=7,c=100,d,e,f;
    d=a/b*c;
    e=a*c/b;
    f=c/b*a;
    printf("d=%d,e=%d,f=%d\n",d,e,f);
    return 0;
} 

#include<stdio.h>
int main(void){
    int a=5,b=8;
    printf("a++=%d\n",a++);
    printf("a=%d\n",a);
    printf("++b=%d\n",++b);
    printf("b=%d\n",b);
    return 0; 
}

#include<stdio.h>
int main(void){
    int a=5,b=8,c=8;
    printf("%d,%d,%d,%d\n",a==b&&a==c,a!=b&&a!=c,a>=b&&a>=c,a<=b&&a<=c);
    printf("%d,%d\n",a<=b||a>=c,a==b||b==c);
    printf("%d,%d,%d,%d\n",!(a==b),!(a>=b),!(a>=c),!(a<=b));
    return 0;    
}

#include<stdio.h>
int main(void){
    int x;
    printf("輸入一個(gè)整數(shù):\n");
    scanf("%d",&x);
    if(x%2!=0)
      printf("是奇數(shù)"); 
    else 
      printf("是偶數(shù)");
    return 0; 
} 

#include<stdio.h>
int main(void){
    int days;
    printf("輸入一個(gè)整數(shù)：\n");
    scanf("%d",&days);
    if(1<=days&&days<=5)
      printf("weekend,fighting\n");
    else if(days==6||days==7)
      printf("weekend,relax~\n");
    else
      printf("Ooops,not in 1~7\n");
    return 0;
} 

#include<stdio.h>
int main(void){
    char ch;
    printf("輸入一個(gè)字符：\n");
    scanf("%c",&ch);
    if(ch>='a'&&ch<='z')
      ch=ch-32; 
    printf("%c\n",ch);
    return 0;
}

#include<stdio.h>
int main(void){
    int a,b=0,c=1,n;
    printf("輸入一個(gè)十進(jìn)制數(shù)字:\n");
    scanf("%d",&n);
    while(n){
        a=n%2;
        b=c*a+b;
        c=c*10;
        n=n/2;
    } 
    printf("%d\n",b);
    return 0;
}