import json
import sys
 
results = json.load(sys.stdin)
print(results['response']['items'][0]['id'])
 

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{
"response": {
"count": 1675,
"items": [{
"id": 1835,
"from_id": -156603484,
"owner_id": -156603484,
"date": 1517756029,
"marked_as_ads": 0,
"post_type": "post",
"text": "#artist_baekgup #cute #dashabetes #equestriagirls #fistbump #heart #hoofbump #humanponidox #rainbowdash #safe #selfponidox #squarecrossover",
"can_edit": 1,
"created_by": 213468131,
"can_delete": 1,
"can_pin": 1,
"attachments": [{
"type": "photo",
"photo": {
"id": 456240790,
"album_id": -7,
"owner_id": -156603484,
"user_id": 213468131,
"photo_75": "https://content-available-to-author-only.userap...b09/4PbsucV0-4g.jpg",
"photo_130": "https://content-available-to-author-only.userap...b0a/vHVTRcXyvyY.jpg",
"photo_604": "https://content-available-to-author-only.userap...b0b/6cccdrLMecQ.jpg",
"width": 551,
"height": 500,
"text": "",
"date": 1517756029,
"post_id": 1835,
"access_key": "1be80adf605e9c36d8"
}
}],
"post_source": {
"type": "api"
},
"comments": {
"count": 0,
"groups_can_post": true,
"can_post": 1
},
"likes": {
"count": 1,
"user_likes": 0,
"can_like": 1,
"can_publish": 1
},
"reposts": {
"count": 0,
"user_reposted": 0
},
"views": {
"count": 2
}
}],
"profiles": [{
"id": 213468131,
"first_name": "Тимур",
"last_name": "Ивченко",
"sex": 2,
"screen_name": "jengas",
"photo_50": "https://content-available-to-author-only.userap...328/iymw6YlJsRQ.jpg",
"photo_100": "https://content-available-to-author-only.userap...327/J9eLMYmV_LI.jpg",
"online": 1
}],
"groups": [{
"id": 156603484,
"name": "Equestria in the Space",
"screen_name": "equestriaspace",
"is_closed": 0,
"type": "group",
"is_admin": 1,
"admin_level": 3,
"is_member": 1,
"photo_50": "https://content-available-to-author-only.userap...089/u0_mBSE4E34.jpg",
"photo_100": "https://content-available-to-author-only.userap...088/O6vENP0IW_w.jpg",
"photo_200": "https://content-available-to-author-only.userap...086/rwntMz6YwWM.jpg"
}]
}
}