#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <time.h>
#include <limits.h>

char input[] =
{
#embed "input.txt"
,'\0' // null terminator
};

//char input[] = "L68\nL30\nR48\nL5\nR60\nL55\nL1\nL99\nR14\nL82\n";
int width = 0;
int height = 0;
uint64_t result = 0;

uint64_t parseNum(char* str, int* len){
    int i = 0;
    uint64_t out = 0;
    while(str[i] != ',' && str[i] != '-' && str[i] != '\n'){
        out += str[i]-0x30;
        out *= 10;
        i++;
    }
    out /=10;
    *len = i;
    return out;
}

int numPlaces (uint64_t n) {
    int r = 1;
    while (n > 9) {
        n /= 10;
        r++;
    }
    //printf("%d has %d places\n", n, r);
    return r;
}

uint64_t power(uint64_t base, uint64_t exp) {
    uint64_t i, result = 1;
    for (i = 0; i < exp; i++)
        result *= base;
    return result;
 }

bool check_silly(uint64_t in){
    int num = numPlaces(in);
    
    if(!(num%2)){
        uint64_t div = 1+power(10, num/2);
        //printf("check dividend is %d\n", div);
        if(in%div == 0){
            return true;
        }
    }
    return false;
}

void sort_ranges(uint64_t* starts, uint64_t* ends, int len){
    int curr_min = 0;
    for(int i = 0; i<len-1; i++){
        for(int o = i; o<len; o++){
            if(starts[curr_min]>starts[o]){
                curr_min = o;
            }
        }
        uint64_t tmp_start = starts[curr_min];
        uint64_t tmp_end = ends[curr_min];
        
        starts[curr_min] = starts[i];
        ends[curr_min] = ends[i];

        starts[i] = tmp_start;
        ends[i] = tmp_end;
    }
}

int main(int argc, char *argv[]){
    clock_t start, end;
    start = clock();

    printf("INT_MAX: %d\n", INT_MAX);

    int i = 0;
    int num_ranges = 1;
    while(input[i] != 0){
        if(input[i]==','){
            num_ranges++;
        }
        i++;
    }

    uint64_t starts[num_ranges];
    uint64_t ends[num_ranges];

    i = 0;
    int range_num = 0;
    int len = 0;
    while(input[i] != 0){
        starts[range_num] = parseNum(&input[i], &len);
        i+=len+1;
        ends[range_num] = parseNum(&input[i], &len);
        i+=len+1;

        //printf("%d-%d\n", starts[range_num], ends[range_num]);
        range_num++;
    }

    sort_ranges(starts, ends, num_ranges);

    for(i = 0; i<num_ranges; i++){
        printf("checking range %lu-%lu\n\n", starts[i], ends[i]);
        for(uint64_t o = starts[i]; o<=ends[i]; o++){
            //printf("checking %d for sillyness\n", o);
            if(check_silly(o)){
                result += o;
                printf("%lu is SILLY!\t\tcount is %lu\n", o, result);
                
            }
        }
    }
    
    //if(check_silly(1212)){
    //    result += 1212;
    //    printf("%d is SILLY!\n", 1212);
    //}
    

    end = clock();
    printf("count: %lu\n", result);
    clock_t ticks_taken = end - start; 
    double time_taken = ((double)ticks_taken)/CLOCKS_PER_SEC;
    printf("time take: %f ticks\n", time_taken);
    printf("CLOCKS_PER_SEC: %ld\n", CLOCKS_PER_SEC);


    exit(1);
}