593 B | 593 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
n, p, q = mii()
l = sorted(mii())
w = i = j = 0
while i < n and j < p and w < q:
crt = l[i]
if w + crt <= q:
w += crt
j += 1
i += 1
return j
if __name__ == "__main__":
tc = ii()
for t in range(1, tc+1):
ret = solve()
print(f"Case {t}: {ret}")