2020/3/+y=342x+9y=812...+4y=358x+3y=+2y=527x+4y=+6y=549x+2y=+y=72x+5y=+2y=213x+5y=+7y=525x+2y=+5y=657x+7y=+4y=56x+4y=+7y=415x+8y=..+5y=543x+4y=+8y=+y=2935...+6y=249x+5y=4638..+2y=624x+3y=..+4y=467x+4y=+7y=1353x+8y=514x+7y=+6y=+y=419x+3y=+2y=382x+3y=73x-2y=+6y=183x+y=72x-3y=312020/3/27..+5y=+2y=28x+6y=143x+3y=+9y=697x+8y=+4y=675x+3y=-7y=5x+2y=+5y=82x+8y=+4y=524x-3y=-2y=+3y=-57x+6y=742x-y=+y=-2y=-5y=24x+6y=167x-4y=112x-y=+6y=48y-3x=-8y=146x+3y=-2y=6x+y=58x+2y=169x-3y=123x-5y=+y=+y=-y=+9y=+7y=+y=+10y=-y=-y
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