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QOJ

Time Limit: 2 s Memory Limit: 256 MB Total points: 100

#22575. O computador bovino tolo

Statistics

Sem experiência digital, as vacas queriam uma máquina binária (base2, um cowmpouter), mas fizeram base-2! Gostaram porque não há bit de sinal.

Valores da direita para esquerda:1,-2,4,-8,16,-32, etc. Contar de1:1,110,111,100,101,11010,11011,11000,11001, etc. Negativos também usam1 e0 sem sinal. Decrescendo de-1:11,10,1101,1100,1111, etc.

Converta inteiros decimais comuns para base-2.

Entrada

Um inteiro em-2,000,000,000..2,000,000,000.

Saída

O inteiro em base-2 sem zeros iniciais. Escreva0 exatamente0.

Exemplos

Entrada 1

-13

Saída 1

110111

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