import json
from datetime import datetime
import sys
import matplotlib.pyplot as plt

data = json.loads(sys.stdin.read())

# Extracting datetime and stdout values
datetimes = []
stdout_values = []

for entry in data:
    datetimes.append(
        datetime.strptime(entry['datetime'], "%Y-%m-%d %H:%M:%S %z"))
    stdout_values.append(int(entry['stdout']))

# Plotting
plt.plot(datetimes, stdout_values, marker='o')
plt.xlabel('Datetime')
plt.ylabel('stdout')
plt.title('stdout over Time')
plt.xticks(rotation=45)
plt.tight_layout()
plt.show()