diff --git a/c_impl/Makefile b/c_impl/Makefile
index c114eb7..44e29a5 100644
--- a/c_impl/Makefile
+++ b/c_impl/Makefile
@@ -1,4 +1,4 @@
-COMMON_FLAGS = -Wall -Wextra -Wpedantic
+COMMON_FLAGS = -std=gnu11 -Wall -Wextra -Wpedantic
 
 ifdef DEBUG
 	CFLAGS = $(COMMON_FLAGS) -O0 -g
diff --git a/c_impl/src/main.c b/c_impl/src/main.c
index 11b7fad..e1a29eb 100644
--- a/c_impl/src/main.c
+++ b/c_impl/src/main.c
@@ -1,3 +1,113 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define INIT_SPLIT_LIST_SIZE 8
+#define INIT_INPUT_LIST_SIZE 8
+#define INIT_OUTPUT_LIST_SIZE 8
+
+void print_help() {
+    puts("./program <comma_separated_split_list> <comma_separtaed_input_list>");
+}
+
+void print_l(unsigned int size, int *list) {
+    for(unsigned int i = 0; i < size; ++i) {
+        printf("%d ", list[i]);
+    }
+    printf("\n");
+}
+
+void push_l(unsigned int *size, unsigned int *capacity, int **list, int new) {
+    if(*size == *capacity) {
+        int *new_list = (int*)malloc(*capacity * sizeof(int) * 2);
+        memcpy(new_list, *list, *capacity * sizeof(int));
+        free(*list);
+        *list = new_list;
+        *capacity = *capacity * 2;
+    }
+
+    (*list)[*size] = new;
+    *size = *size + 1;
+}
+
 int main(int argc, char **argv) {
+    if(argc != 3) {
+        puts("ERROR: Requires two arguments:");
+        print_help();
+        return 1;
+    }
+
+    unsigned int sl_size = 0;
+    unsigned int sl_capacity = INIT_SPLIT_LIST_SIZE;
+    int *split_list = (int*)malloc(sl_capacity * sizeof(int));
+
+    unsigned int il_size = 0;
+    unsigned int il_capacity = INIT_INPUT_LIST_SIZE;
+    int *input_list = (int*)malloc(il_capacity * sizeof(int));
+
+    int temp = 0;
+    for(unsigned int i = 0; argv[1][i] != 0; ++i) {
+        if(argv[1][i] != ',') {
+            temp = temp * 10 + (int)(argv[1][i] - '0');
+        } else {
+            push_l(&sl_size, &sl_capacity, &split_list, temp);
+            temp = 0;
+        }
+    }
+    push_l(&sl_size, &sl_capacity, &split_list, temp);
+    temp = 0;
+
+    for(unsigned int i = 0; argv[2][i] != 0; ++i) {
+        if(argv[2][i] != ',') {
+            temp = temp * 10 + (int)(argv[2][i] - '0');
+        } else {
+            push_l(&il_size, &il_capacity, &input_list, temp);
+            temp = 0;
+        }
+    }
+    push_l(&il_size, &il_capacity, &input_list, temp);
+
+    puts("Got input:");
+    print_l(sl_size, split_list);
+    print_l(il_size, input_list);
+
+    unsigned int *out_sizes = (unsigned int*)calloc(
+        sl_size, sizeof(unsigned int));
+    unsigned int *out_capacities = (unsigned int*)malloc(
+        sl_size * sizeof(unsigned int));
+    for(unsigned int i = 0; i < sl_size; ++i) {
+        out_capacities[i] = INIT_OUTPUT_LIST_SIZE;
+    }
+    int **out_lists = (int**)malloc(
+        sl_size * sizeof(int*));
+    for(unsigned int i = 0; i < sl_size; ++i) {
+        out_lists[i] = (int*)malloc(
+            INIT_OUTPUT_LIST_SIZE * sizeof(int));
+    }
+
+    unsigned int il_idx = 0;
+    for(unsigned int i = 0; i < sl_size; ++i) {
+        for(unsigned int j = 0; j < split_list[i]; ++j) {
+            if(il_idx >= il_size) {
+            } else {
+                push_l(out_sizes + i, out_capacities + i, out_lists + i,
+                    input_list[il_idx++]);
+            }
+        }
+    }
+
+    puts("Output lists:");
+    for(unsigned int i = 0; i < sl_size; ++i) {
+        print_l(out_sizes[i], out_lists[i]);
+    }
+
+    free(split_list);
+    free(input_list);
+    free(out_sizes);
+    free(out_capacities);
+    for(unsigned int i = 0; i < sl_size; ++i) {
+        free(out_lists[i]);
+    }
+    free(out_lists);
     return 0;
 }