211*555+445*789+555*789+211*455

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211*555+445*789+555*789+211*455
211*555+445*789+555*789+211*455

211*555+445*789+555*789+211*455
211*555+445*789+555*789+211*455
=555*(211+789)+445*(789+211)
=555000+445000
=1000000

211*555+445*789+555*789+211*455
=555*(211+789)+445*(789+211)
=555000+445000
=1000000