import ast
import sys
input_string = sys.stdin.read()
data = ast.literal_eval(input_string)
for item in data["result"]:
print("{total}, {_id}".format(**item))
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{
'ok': 1.0,
'result': [
{
'total': 142250.0,
'_id': 'BC'
},
{
'total': 210.88999999999996,
'_id': 'USD'
},
{
'total': 1065600.0,
'_id': 'TK'
}
]
}