Index: aoc2024.c
==================================================================
--- aoc2024.c
+++ aoc2024.c
@@ -94,21 +94,19 @@
     size_t outlen = 0;
     unsigned ip = 0;
     while (ip + 1 < np) {
         ip = instruction(ip, p[ip], p[ip+1], reg, output, &outlen);
     }
-    printf("Program's output is {");
-    for (unsigned k = 0; k < outlen; k++) {
-        if (k) putchar(',');
-        putchar((int)output[k] + '0');
+    printf("Program's output is {%u", output[0]);
+    for (unsigned k = 1; k < outlen; k++) {
+        printf(",%u", output[k]);
     }
     printf("}\n");
 
     printf("Program is          (%u", p[0]);
     for (unsigned k = 1; k < np; k++) {
-        if (k) putchar(',');
-        putchar((int)p[k] + '0');
+        printf(",%u", p[k]);
     }
     printf(")\n");
 
     reg[3] = 202322936867370;
 #if 0