from sys import stdin
 
def main():
    cnt = 0
    for line in stdin:
        n = int(line.strip())
        cnt += 1
        num = 1 + (n * (n + 1)) // 2
        if n == 0:
            print(f"Caso {cnt}: {num} numero")
        else:
            print(f"Caso {cnt}: {num} numeros")
        print("0", end="")
        for i in range(1, n + 1):
            for j in range(1, i + 1):
                print(f" {i}", end="")
        print("\n")
 
if __name__ == "__main__":
    main()
 

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