diff --git a/storage/zeta/c/completed/15645.c b/storage/zeta/c/completed/15645.c
new file mode 100644
index 0000000..6ad738d
--- /dev/null
+++ b/storage/zeta/c/completed/15645.c
@@ -0,0 +1,57 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct {
+    uint32_t first;
+    uint32_t second;
+    uint32_t third;
+} Row;
+
+inline uint32_t max2(uint32_t a, uint32_t b) {
+    return a > b ? a : b;
+}
+
+inline uint32_t max3(uint32_t a, uint32_t b, uint32_t c) {
+    return max2(max2(a, b), c);
+}
+
+inline uint32_t min2(uint32_t a, uint32_t b) {
+    return a < b ? a : b;
+}
+
+inline uint32_t min3(uint32_t a, uint32_t b, uint32_t c) {
+    return min2(min2(a, b), c);
+}
+
+int32_t main() {
+    size_t n;
+    scanf("%zu", &n);
+
+    Row row = {0, 0, 0};
+    Row curr_min = {0, 0, 0};
+    Row next_min = {0, 0, 0};
+    Row curr_max = {0, 0, 0};
+    Row next_max = {0, 0, 0};
+
+    for (size_t i = 0; i < n; i++) {
+        scanf("%d %d %d", &row.first, &row.second, &row.third);
+
+        next_max.first = max2(curr_max.first, curr_max.second) + row.first;
+        next_max.second = max3(curr_max.first, curr_max.second, curr_max.third) + row.second;
+        next_max.third = max2(curr_max.second, curr_max.third) + row.third;
+        curr_max = next_max;
+
+        next_min.first = min2(curr_min.first, curr_min.second) + row.first;
+        next_min.second = min3(curr_min.first, curr_min.second, curr_min.third) + row.second;
+        next_min.third = min2(curr_min.second, curr_min.third) + row.third;
+        curr_min = next_min;
+    }
+
+    printf("%d %d\n",
+           max3(curr_max.first, curr_max.second, curr_max.third),
+           min3(curr_min.first, curr_min.second, curr_min.third));
+    fflush(stdout);
+
+    return 0;
+}
\ No newline at end of file