try:
    from uio import StringIO
    import ujson as json
except:
    try:
        from io import StringIO
        import json
    except ImportError:
        import sys
        print("SKIP")
        sys.exit()

print(json.load(StringIO('null')))
print(json.load(StringIO('"abc\\u0064e"')))
print(json.load(StringIO('[false, true, 1, -2]')))
print(json.load(StringIO('{"a":true}')))