#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int* solution(int* arr, int arrSize, int** queries, int queriesSize, int* queryColSize, int* returnSize) {
    *returnSize = queriesSize;
    int* result = (int*)malloc(queriesSize * sizeof(int));
    
    for (int i = 0; i < queriesSize; i++) {
        int left = queries[i][0];
        int right = queries[i][1];
        int xorResult = 0;
        for (int j = left; j <= right; j++) {
            xorResult ^= arr[j];
        }
        result[i] = xorResult;
    }
    return result;
}

int main() {
    char line[10000];
    
    // Parse arr
    fgets(line, sizeof(line), stdin);
    int arr[1000];
    int arrSize = 0;
    char* token = strtok(line, "[],\n ");
    while (token != NULL) {
        arr[arrSize++] = atoi(token);
        token = strtok(NULL, "[],\n ");
    }
    
    // Parse queries
    fgets(line, sizeof(line), stdin);
    int queries[1000][2];
    int queriesSize = 0;
    char* ptr = line;
    while ((ptr = strchr(ptr, '[')) != NULL) {
        sscanf(ptr, "[%d,%d]", &queries[queriesSize][0], &queries[queriesSize][1]);
        queriesSize++;
        ptr++;
    }
    
    int returnSize;
    int* queryColSize = (int*)malloc(queriesSize * sizeof(int));
    for (int i = 0; i < queriesSize; i++) queryColSize[i] = 2;
    int** queryPtr = (int**)malloc(queriesSize * sizeof(int*));
    for (int i = 0; i < queriesSize; i++) queryPtr[i] = queries[i];
    
    int* result = solution(arr, arrSize, queryPtr, queriesSize, queryColSize, &returnSize);
    
    printf("[");
    for (int i = 0; i < returnSize; i++) {
        printf("%d", result[i]);
        if (i < returnSize - 1) printf(",");
    }
    printf("]\n");
    
    free(result);
    free(queryColSize);
    free(queryPtr);
    return 0;
}