public class Test {
//1부터 100
	public static void main(String[] args) {
	
		int sum=0;
		for(int i=0; i<100;i++) {
			sum+=i+1;
		}
		System.out.println(sum);
	}	
}

public class Test {
	public static void main(String[] args) {
//1부터 10
		int sum=0;
		for(int i=0; i<10;i++) {
			sum+=i+1;
		}
		System.out.println(sum);
	}	
}


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