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#include <stdio.h>
 
int main(void)
{
	int a,b,sum;
	sum=0;
	printf("정수를 입력하세요");
	scanf("%d",&b);
	for(a=1;a<=b;a=a+1){
		sum=sum+a;
	}
	printf("1부터 입력하신 정수까지의 합은 %d입니다\n",sum);
}

Main.java:1: error: illegal character: '#'
#include <stdio.h>
^
Main.java:1: error: class, interface, or enum expected
#include <stdio.h>
         ^
Main.java:6: error: class, interface, or enum expected
	sum=0;
	^
Main.java:7: error: class, interface, or enum expected
	printf("??? ?????");
	^
Main.java:8: error: class, interface, or enum expected
	scanf("%d",&b);
	^
Main.java:9: error: class, interface, or enum expected
	for(a=1;a<=b;a=a+1){
	^
Main.java:9: error: class, interface, or enum expected
	for(a=1;a<=b;a=a+1){
	        ^
Main.java:9: error: class, interface, or enum expected
	for(a=1;a<=b;a=a+1){
	             ^
Main.java:11: error: class, interface, or enum expected
	}
	^
Main.java:13: error: class, interface, or enum expected
}
^
10 errors

Standard output is empty