/*
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
float a;
scanf("%f",&a);
printf("%.2f",a);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
int a,b;
scanf("%d:%d",&a,&b);
printf("%d:%d",a,b);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
int a,b,c;
scanf("%d.%d.%d",&a,&b,&c);
printf("%04d.%02d.%02d",a,b,c);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int a,b,c;
scanf("%d.%d.%d",&a,&b,&c);
printf("%02d-%02d-%04d",c,b,a);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int a,b;
scanf("%d-%d",&a,&b);
printf("%06d%07d",a,b);
return 0;
}
자료형
-2147483648 ~ +2147483647
정수 int %d
long long int %lld
실수 float %f
double %lf
문자 char
*/
/*
# include <stdio.h>
int main()
{
long long int a;
scanf("%lld",&a);
printf("%lld",a);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
double a;
scanf("%lf",&a);
printf("%.11lf",a);
return 0;
}
산술연산자
+ - * / %
5/2 몫 2 나머지 1 나눈값 2.5
printf("%f",(float)a/b); //강제형변환
printf("%d",a/b);
printf("%d",a%b);
int a, b;
scanf("%d %d",&a,&b);
printf("%lld",(long long int)a+b);
overflow 오버플로
*/
/*
# include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%lld",(long long int)a+b);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
long long int a,b;
scanf("%lld %lld",&a,&b);
printf("%lld",a+b);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
printf("%d",-a);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
char a;
scanf("%c",&a);
printf("%c",a+1);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a/b);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a%b);
return 0;
}
*/
/*
# include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d\n",a+b);
printf("%d\n",a-b);
printf("%d\n",a*b);
printf("%d\n",a/b);
printf("%d\n",a%b);
printf("%.2f",(float)a/b);
return 0;
}
*/