1 files changed, 18 insertions, 0 deletions
diff --git a/NTU/gacho.c b/NTU/gacho.c
new file mode 100644
index 0000000..6df8548
--- /dev/null
+++ b/NTU/gacho.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int main()
+{
+	long n, m, g, c;
+
+	scanf("%ld %ld", &n, &m);
+
+	g = n*2 - m/2;
+	c = m/2 - n;
+
+	if ((g + c == n) && (g*2 + c*4 == m) && (g >= 0) && (c >= 0))
+		printf("%ld %ld\n", g, c);
+	else
+		puts("-1");
+
+	return 0;
+}