diff --git a/Makefile b/Makefile
index 48b62f1..df863ca 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,11 @@
-install: man sh
+install: man sh c
 man:
 	mkdir -p $(DESTDIR)$(PREFIX)/man1
 	cp -f *.1 $(DESTDIR)$(PREFIX)/man1
 sh:
 	mkdir -p $(DESTDIR)$(PREFIX)/bin
-	cp -f paste $(DESTDIR)$(PREFIX)/bin
-	cp -f bat $(DESTDIR)$(PREFIX)/bin
+	cp -f scripts/paste $(DESTDIR)$(PREFIX)/bin
+	cp -f scripts/bat $(DESTDIR)$(PREFIX)/bin
+c:
+	cc progs/scream.c -o progs/scream
+	cp -f progs/scream $(DESTDIR)$(PREFIX)/bin
diff --git a/progs/scream.c b/progs/scream.c
new file mode 100644
index 0000000..c39b08f
--- /dev/null
+++ b/progs/scream.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <ctype.h>
+
+/* written on new year's eve 2020
+ * good night and good riddance */
+
+char newchar(char c, int i) {
+	switch(i) {
+		case 0:
+			if(isupper(c)) return c + 32;
+			if(c == 33) return -2;
+			else return c;
+		case 1:
+			if(islower(c)) return c - 32;
+			if(c == 33) return -2;
+			else return c;
+		default: return -1;
+	}
+}
+int advi(int i) {
+	switch(i) {
+		case 0: return 1;
+		case 1: return 0;
+		default: return -1;
+	}
+}
+int main(void) {
+	char c;
+	int i = 0;
+	while((c = getchar()) != EOF) {
+		putchar(newchar(c, i));
+		i = advi(i);
+	}
+}