程序代码:#include <stdio.h>
int main(int argc, char *argv[])
{
int n;
scanf("%d ", &n);
n %= 26;
for(int ch = getchar(); ch != '\n'; ch = getchar())
{
ch += n;
putchar(ch > 'z' ? ch - 26 : ch);
}
puts("");
return 0;
}

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