565 B | 565 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
sys.setrecursionlimit(10**7)
BLANK = " "
# inp = input
inp = lambda : sys.stdin.readline().rstrip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
L, C, N = mii()
ar = [mii() for _ in range(C)] # s: len, p: pos
for s, pos in ar:
p(abs(pos - N) + s)
tc = 1
for t in range(1, tc+1):
ret = solve()