bonjour
31² = ( 30 + 1 )² = 900 + 60 + 1 = 961
43² = ( 40 + 3 )² = 1 600 + 240 + 9 = 1 849
continue
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bonjour
31² = ( 30 + 1 )² = 900 + 60 + 1 = 961
43² = ( 40 + 3 )² = 1 600 + 240 + 9 = 1 849
continue