Masala #0345
Bilmasvoyga yordam
Bilmasvoy algebra darsida uhlab qolibdi, shuning uchun u ustozi o'tib bergan darsni tinglamadi, darsning ohirida esa ustozi uyga vazifa berdi: yumaloq stolda n ta odam necha hil usulda o'tirishi mumkin. Bilmasvoyga ertangi darsda 2 olmasligi uchun yordam bering.
INPUT.TXT kirish faylining birinchi satrida bitta natural son \(n (1≤n≤1000)\) beriladi
Masala javobini \(10^9\) ga bo'lgandagi qoldiqni chop eting
# | input.txt | output.txt |
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1 |
2 |
1 |