16 lines
231 B
C
16 lines
231 B
C
#include <stdio.h>
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int main(void){
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int days = 0;
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while(scanf("%d",&days) == 1){
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int i = 0, numbers = 1;
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for(i = 1; i < days; i++){
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numbers += 1;
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numbers *= 2;
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}
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printf("%d\n",numbers);
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getchar();
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}
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return 0;
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}
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