#!/usr/bin/env python
#
# Usage: dayofweek <year> <month> <day>
#
# Example: dayofweek 2003 11 6

import sys
from datetime import datetime

if __name__ == "__main__":
    if len(sys.argv) != 4:
        print("Usage: dayofweek <year> <month> <day>")
        exit(1)
    else:
        print(
            datetime(int(sys.argv[1]), int(sys.argv[2]), int(sys.argv[3])).strftime(
                "%A"
            )
        )